Pregant Women with HIV Infections Research Paper

Pregant Women with HIV Infections - Research Paper Example Pregnant Women with HIV Infections Part A HIV/AIDS is a disease that has had its implications on society in a very vast manner especially over the last two decades. The disease came to prominence around the year 1987 and since then the number of infections have been on the steady rise. The disease is spread through very many distinct ways. There is the spread of the disease from having many sexual partners, the sharing of sharp objects with a person already infected with the virus and finally yet importantly, there is that of pregnant women transferring the disease to their unborn babies. This paper will be very clear in expressing the issues faced by pregnant women with HIV/AIDS and the various manners through which society observes and treats them. It is important to look at this issue because there is a lot of stigma around concerning these women. The United States views the problem of these women in various perspectives and offers the best that it can through the healthcare syste m to ensure that they receive the amount of care they require. The problems faced by these women are widespread and are all across the world but the different manners through which the healthcare organizations look at them is very important. One of the very important aspects of the issue that the United States health system focuses on is the counseling of these women so that they cannot feel left out or rather feel weird. The women receive treatment in a manner through which they receive the best medical care because there is also the focus on the health condition of the unborn child. The screening of the women is rather imperative for the research of other health issues that may make them weaker. When a person has HIV/AIDS, the white blood cells that are responsible for the guard of the body do not function correctly. It is for this reason that any other health condition is supposed to be given a priority to ensure that the women do not suffer a lot. This was study carried out by t he National Institute of Child Health and Human Development. The United States also takes the issue rather seriously from the manner in which medical practitioners offer the required prophylaxis. The government has a major role to play in this because there are many countries that have bills that have the family of the HIV/AIDS infected patient carrying the burden of paying the bills for the medication. The medication is very important as it assists in the healing of Opportunistic Infections. These infections were reported to have killed around 37% of all pregnant HIV/AIDS patients in the United States over the period between 1990 and 2000. The analysis made it very important for the government to bring in a program that ensured that the deaths resulting from these infections reduced (Adams, 2011). The issue of HIV/AIDS is taken in a rather serious manner in the United States from the number of bills that are passed regarding the issue. One of the bills passed ensured that among all the necessary tests taken by pregnant women when being admitted to hospitals, HIV/AIDS becomes one of them (Adams, 2011). The first step taken is immunization that also assists in protecting the unborn child from contracting the disease. The reason as to why the government decided to make a priority while handling pregnant women is from the manner through which parents’

Troubleshooting Evco Insurance Network Essay Example for Free

Troubleshooting Evco Insurance Network Essay The network manager himself not keeping track of the growth of the network , coupled with the return of an unspecified number of computers from storage back into the network, are conditions that would encourage the network congestion currently experienced by Evco Insurance. This is further confirmed by the fact that the worst network congestion occurs where the network has experienced the most expansion in the last six months: the Marketing department. Several causes come to mind, with the presentation of the scenario for Evco Insurance.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The first cause that comes to mind is in regards to the computers pulled out of storage. It is possible that since the computers were pulled out of storage, the configuration of the TCP/IP settings may have conflicted with newer additions to the network. This would affect the computers within the marketing department, since these particular computers were deployed there, and any other computers that share the same settings. This would explain the some of the causes of the network congestion and the solution would be to correct or reconfigure the settings on the affected computers. This is a basic error, however, and would mostly affect only the individual computers that have conflicting settings and would not be the most probable cause, though it may contribute to the congestion.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Related to the first possible cause is the possibility that there are hardware errors that were unchecked when the computers were assigned to the new marketing personnel. A particular concern is the network cards of those computers taken from storage. One such error causes the network card to continuously transmit junk data into the network, flooding the network with unnecessary data and slowing down connectivity; in which case even just one such computer can cause the whole network to slow down. Actual settings of network adapters and switch ports may also have conflicting settings. Both these hardware /settings errors can contribute to the network slowdown in the Marketing department, and both can be located using a combination of actually checking each computer and checking how far along the network a command or ping can travel.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Another possibility, but not the last possible cause, is the actual physical cable connections of the Network. A 100BASE-TX can have up to 100 meters of twisted copper cable per segment length, which must be rated at least category 5. While it is possible that the network itself has been poorly maintained, and that individual cables within the physical network are causing the error, it   may be more likely that there are problems or errors in the physical connections recently added to the network, since the problem of slow connectivity was experienced after the addition to the network. Ranging from poorly-maintained cables, using the wrong category of cables, or even the correct type of cable connected or the incorrect crimping of the cable can lead to network slowdown.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Any of these three, or perhaps none of them, could be the cause for the network slowdown experienced in the Marketing department of Evco Insurance. There could be other reasons for the problem, though these are the three possible causes that immediately came to my mind.

Journal of a Titanic Passenger Essay -- Journal Diary entry titanic Es

Journal of a Titanic Passenger I am writing my first entry aboard this incredible vessel today, primarily because I have been spending the last three days exploring the sections open to my fellow third-class passengers and I. What I have seen is extraordinary, especially when first boarding the ship. The halls and staircases of the first class section were like nothing I had ever seen before in my life. They were blanketed in luxury from end to end. The first class passengers I had managed to see wore their best garments boarding the ship and were conversing with each other about their rich lives back home. I believe I even saw Mr. John Jacob Astor, a man I had heard much about for his contributions to the American fur trade. I had heard that he would be aboard for the maiden voyage of ...

What is inflammation?

This is term that is used to describe a reaction of localized tissues that is irritated, or can be cause because of an injury, infection, redness and swelling. There are several types of disease that cause severe inflammation, one disease that is very bad is Encephalitis this is an inflammation of the brain. This particular condition can happen to anyone at any age, all over the world. If encephalitis develops very rapidly, it can cause serious problems to the nervous system and the brain. If the body produces antibodies to fight the inflammation there’s a chance that they could make a mistake and attack the healthy brain tissue instead of the tissue that is inflamed. If this is not cured it could end up being life threatening. This is just one of many infections that cause by inflammation. How body reacts to inflammation are is by detecting where the exact location the inflammation is. When the body knows where it is it can send out anti bodies to eat the infection that is causing the inflammation. The symptoms of inflammation are it can be red and warm because of a large amount of blood reaching the swollen area. It can be very painful at time especially at the site of infection. There are many way to relief the pain, redness, and swelling is to put ice on it, also some inflammatory ointment can also be used to help reduce the sign of inflammation. Normally the inflammation only last till the infection has been totally healed after that there should no long be any inflammation. Sometimes during the process of the cells healing itself the cells can die of lack of nutrients known necrotic death, another way that the cells can die is from committing suicide by destroying themselves, this is known as Apoptotic death. When our body finds that there is an inflammation our body quickly reposed and kills the intruder. Then once the infection has been killed then the inflammation should go away. There are so many various things that can cause an inflammation in our body.

Essay Social Media And Advertising Essay

Social media plays a significant role in ensuring that advertising is successful. Social media is made up of websites that enable users to create and share content with other users across the internet. In today’s world almost everything that takes place revolves around social media and as a result any new product, business or service being advertised is associated with social media in some way. According to some analysts, social media is â€Å"a group of Internet-based applications that build on the ideological and technological foundations of Web 2.0, and that allow the creation and exchange of user-generated content† (Kaplan, p61). With the world growing to be more technological enhanced it shows that more customers and potential customers are becoming more dependent on social media when pursuing a product or service of interest. Social media is user friendly, allows for sharing of content with a wide audience and makes it possible for relationships to develop among o ther brands. Social media is important in ensuring advertising is successful because it provides a user friendly platform that is compatible with its intended user’s ability to use it easily and successfully. Previously, mainly younger persons were the ones who used social media; however, recently older persons are being more engaged in social media because it is much easier to operate and understand now. Many persons believe that social networks are only for younger people, yet we find that everyday older people are using social media not just to keep up with family and friends but to actually communicate with organizations of interest and to engage with their customers. From an older person’s perspective, â€Å"social media allows them to have their own say and provides them with a warm welcoming feeling that they belong† (Ongeri, 1). This would therefore lead to an increase in the success received from advertising via social media because customers prefer easily accessible and user-friendly platforms; where all the required information is at hand when using the internet in search of a new product or service. Social media also plays a significant role in advertising because it allows the product or service being advertised to be shared with almost anyone who uses the internet, by sharing pages, photos and videos. Facebook is one of the most popular social networks with approximately 1.15 billion users, and this is  just one of many social networks available. Therefore, this information provides a better understanding of the scale of persons who have access to material shared via social media and helps to showcase why almost every organization enforces the use of social media when advertising a product or service. It is also beneficial because every time content is shared with others it introduces the business to a new prospective each time. This basically means that users are enabled to access the material that other users and businesses have posted online, which generates feedback that may cause users to develop different thoughts and opinions towards the business or brand. Since social media is collaborative and pretty much viral it allows the brand to build up authenticity and loyalty among customers and potential customers. This basically means that every different social network used brings a unique perspective to brands, allowing them to communicate with consumers while reinforcing the brand image. By using Facebook, Twitter and Instagram to name a few; each platform is responsible for providing the consumer with a different outlook and better perspective as to how they view the product or service being offered. This would increase the product’s reputation and sales due to the impact that social media has on advertising. Thirdly, social media plays a significant role in advertising because it allows for relationships with other brands across other social media platforms to be developed. Just as social media have transformed the way in which individuals communicate with each other, it has also transformed the way in which businesses communicate and interact with each other. Relationships are developed through good business trades and links across social networks, some businesses may prefer to deal directly with a specific supplier because of the previous experience they have received from them which they would not want to jeopardize. This link goes both ways with producers and suppliers and can lead to special deals and incentives being offered to each other based on the good business relationships that have developed. This can also filter down to the consumers and allow brands to offer incentives to their customers which would strengthen existing relationships and build new ones at the same time .It would prove to be beneficial for the product being advertised because potential customers always look for new exciting deals being offered. Overall advertising via social media is a positive for any business or firm  promoting a product or service, simply because they are more advantages than disadvantages of using social media when advertising. Social media is used to discover, interact and share new ideas across the internet; therefore once implemented these aspects all play vital roles in showing that social media plays a significant role in advertising.

Mamma Mia! A Critique essays

Mamma Mia! A Critique essays Benny Andersson and Bjorn Ulvaeus Mamma Mia! was the first musical that I have ever watched and it was one of the most exciting entertainment that I have ever experienced. Directed by Phyllida Lloyd, Benny Andersson and Bjorn Ulvaeus have integrated their beloved lyrics and music to create a wedding musical about young love and love lost. The musical is set on a tiny Greek island where young Sophie, the bride, has invited three of her mothers (Donna) ex-lovers in order to determine which one of the men is her biological father. It is a simple love story with well-developed characters despite the fact that the real spotlight of this musical is the music and lyrics of ABBA. The Historic Orpheum Theather, a modern proscenium-stage theater, is the perfect venue for this musical. The cool blue tone lighting designed by Howard Harrison brought to live the atmosphere of sitting on a Greek island surrounded by the ocean. The lighting added depth to the musical as it moved the audience from morning to evening and brought the audience closer to the actors on the stage. It was simple lighting which allowed the audience to focus on the words and emotions of the actors. For the encore, the spotlight turned to the audience in order to engage it in joining the cast in singing and dancing to the forever popular Dancing Queen and the musical title, Mama Mia. The set designs centered around the inn that Donna runs and where Sophie wedding would take place. The musical scenes were set in the courtyard of the inn, a bedroom, or on a dock leading out to the Mediterranean. The scenes were simple and the costumes, except for the outrageous girl band outfits that Donna and her former band mates wore in the seventies, were simple. The simplicity of the set and the costumes all went along the theme of showcasing the music of ABBA. Mark Thompson, who was responsible for the produ ...

Conceptual System Design Essay Essay Example

Conceptual System Design Essay Essay Example Conceptual System Design Essay Paper Conceptual System Design Essay Paper During the system analysis. the analysis of system informations is really of import. Analysis of information is made up of more than one degree at the beginning ( first degree ) and different thoughts are used at each degree. At first degree. analyst develops a conceptual system design. Since the conceptual design sets the way for the direction information system ( MIS ) . It is critical that directors participate earnestly and to a great extent at this phase. Conceptual design is sometimes called feasibleness design. gross design or high degree design. The conceptual design stage takes as input. 1. A sharp statement of a direction information demand and 2. A set of direction aims for the MIS In the conceptual design phase that the alternate overall MIS designs are conceived and the best 1 is selected by the system analyst in audience with the top direction. The feasibleness of run intoing the direction aims for the MIS is assessed demoing how the system will work at the high degree is drawn. Therefore. conceptual design is besides known as gross design ; high degree becomes the footing for the elaborate MIS design. Hence. conceptual design is a pre-design for the elaborate design. In fact. conceptual design is the â€Å"centerpiece† of the procedure. Merely after conceptual design is completed. it can be certain that the MIS can successfully be constructed. The conceptual design involves the undermentioned undertakings. 1. Specifying jobs in more inside informations.2. Polishing the direction aims to put system aims.3. Establishing system restraints.4. Determining information demands and their beginnings.5. Developing alternate designs and choice one from these assorted designs.6. Document the conceptual design and fixing the study. 1. Specify the problem- There is no uncertainty that jobs exists in any dynamic concern. The most of import is that what are normally missing are clear definitions of the jobs and the precedence system on the footing of job is the chief solution. Therefore. direction must take the first measure in MIS design by explicating jobs to be solved. The job can be solved by the iterative procedure. The end for the concern leads to the aims of the general concern. From the aims. programs are derived. Each concern aims and concern programs are derived. Each concern aims and concern programs are associated with information demands. These Information demands are the jobs to be solved by the MIS map. The statements of demands are adequate for planing procedure. 1. Stating the information demand.2. Asking inquiries about that demand.3. Proposing reading of that demand.4. Detailing the original statement.5. Reviewing the more elaborate statement of demand with direction. These stairss are repeated until the information demands and the job to be solved are truly understood. The procedure of job polish flows of course into the system aims. 2. Set System Aims Most of the clip it is rather hard to province aims for systems that covers all the functional countries. The director must specify the system objectives in footings of the importance of information demands and non in footings of the satisfaction of demands that are non related to an aim. System analyst tends to emphasize processing efficiency and staff and functional supervisors normally believe that their aim is â€Å"to complete the needed study in clip for direction use† . This position disregards the existent aims of the system design. management’s effectivity. The value of system lies in the benefits of the users. When we ask for the aims. a college principal may answer. † provide quality education† and a authorities administrative official may say† supply more occupations for the unemployed† . Despite its trouble being specific is necessary. System objectives should be expressed in footings of what directors can make after their information demands have been met. In drumhead. the first stairss in systems design attempts to reply the question† what is the intent of the system? † why it is needed? What is it expected to make? Who are the users what are their aims? 3. Establish System Constraints The iterative nature of the systems design procedure is easy understood when we consider the 3rd measure in the process-establishing restraints. It can besides be called as job boundaries or limitations. restraints enable the interior decorator to qualify the conditions under which aims may be attained and to see the restrictions that restricts the design. The two stairss of puting aims and set uping restraints may be considered together as one. Constraints may be viewed as a negative restriction on systems design. there is a positive benefit besides. Establishing restraints will assist to guarantee that the design is realistic. Constraints may be classified as external or internal to the organisation. External Constraints The external environment of the organisation is concerned by the client. Order entry. charge and other systems that interface with the customer’s needs in head. If some end products from the system are non acceptable to the client. a definite restriction must be faced up. The authorities imposes certain limitations on the processing of informations. That may be the demand to keep the security of certain categories of information to follow with jurisprudence and ordinance in the behavior of concern ( e. g. revenue enhancements. describing ) . Unions can besides impact the operations of systems affecting members in working conditions. Suppliers are besides an of import group to be considered when planing information systems because these systems often interface with that group. Internal Constraints If top direction support is non obtained for the systems construct and for the impression that computing machine based information systems are critical for direction planning and control. the type of design attempt can non be implemented. A good environment for information systems must be set. and one indispensable demand is the blessing and support of the top direction. Organizational and policy considerations often set bound on aims and modify an intended attack to design of the system. Company policies often define or limit the attack to systems designs. Forces demands and forces handiness are a major restricting factor in both the design and use of information systems. Computer and systems accomplishments are among the most critical in the state. The most important restraint of all is the one refering the people. Cost is a major resource restriction. The cost to file away the aims should be compared with the benefits to be derived. Self-imposed limitations are these placed on the design by the director or the interior decorator. The director will besides curtail the sum of clip and attempt devoted to probe. To accomplish the aim. the director may hold to scale down several demands to do the system tantrum with other end products. equipments or restraints. 4. Determining Information demands and beginnings For a good system design. a clear statement of information demands is really of import and necessary. Many organisations spend immense sums on hardware and package to keep bing systems or construct sophisticated informations Bankss. without first finding the existent information demands of direction: the information that can increase the ability of directors in critical countries such as jobs. options. chances and programs. The optimal consequences can non be achieved unless directors can supply the specifications for what they want out of an information system. The director needs information for assortment of grounds concerned with the direction procedure. The type of demands at assorted times and assorted intents depends mostly upon two factors. a ) The personal managerial properties of the single director and B ) The organisational environment in which determinations are made. The information beginnings are of import for finding information demands. The system may necessitate external information or the internal. 5. Alternate conceptual designs and choosing one The development of a construct of a system is a originative procedure that involves synthesising cognition into some peculiar form. The construct of an MIS would dwell of the major determination points. forms of information flow. channels of information and functions of directors and rivals. The construct is the study of the constructions or skeleton of the Information System. which ushers and restricts the signifier of the elaborate design. If conceptual design is the skeleton. so elaborate design is the flesh. E. g. two squads of pupils are seeking to make undertaking on the tourer usher and contact information system. One construct produced is a study demoing a item about the peculiar topographic points depicting its civilization. heritages along with the colleges. Hotels and trade. Whereas another squad produces a study of description of colleges along with the description of module and the fee structures on assorted demands. It is obvious that each alternate construct of a system has advantages and disadvantages. Sometimes one construct will rule all others by major standards. 6. Document the best design Sufficient information has been accumulated to get down a more elaborate description of the system construct. This description includes basically a flow chart or other certification of the flow of information through the system. the inputs and the end products. The director should be involved to the extent that the system provides the information required the interior decorator is concerned with the nature of the stuffs and equipment every bit good as with proficient processing considerations. Detailss to be worked out subsequently by the interior decorator will include exact instructions as what informations are to be captured and when. the files are to be used. the inside informations of how processing is to be done. what outputs will be generated by the system etc. Design Methods There are a no. of methods for planing information systems. Following is a brief description of some of the popular methods. Problem Partitioning Structured Design Top-Down Design Problem Partitioning The method is based on the rule of ‘divide and conquer’ . In this method. alternatively of work outing the full job at one time. the job is divided into little manageable parts that can be solved individually. Structured Design In this method. a structured confab is created. which can be used to implement the system. The chart depicts faculties specifying each faculty by the specific map. Assorted tools like flow-charting. informations flow diagrams. construction charts. structured English. etc. are used in a structured design. Top-down Design The top-down design is based on the construct of a system which suggests that a system consists of sub-system. which has sub-system of their ain. In other words. a system may be termed as a hierarchy of sub-systems. the highest degree sub-system matching to the entire system. Detailed System Design As already stated. conceptual design in itself is non the terminal of the design procedure ; instead it serves as a footing for the elaborate MIS design. The public presentation demands specified by the conceptual design become inputs to the elaborate design stages. in which these are farther refined. elaborate and finalized to be called the system specifications. Therefore. the chief aim of the elaborate system design is to fix a bluish print of a system that meets the ends of the conceptual system design demands. Detailed system design involves the undermentioned stages. I. Undertaking Planning and control two. Involves the User three. Specify the Detailed Sub-Systems four. Input/output Design v. Feedback from the User six. Database Design seven. Procedure Design eight. Design Documentation A brief treatment on each of the stages is given below. Undertaking Planing In order to guarantee an effectual and efficient design of the MIS. it is really of import that a elaborate design procedure should in itself be considered a complete undertaking. Therefore. the first measure in the elaborate design is be aftering and commanding. so that criterions may be established and a proper followup is made. Some of the chief points which are of import in planning and control of a elaborate design are given below. Undertaking Planing i. Formulate the undertaking Objectives. two. Specify the undertaking undertaking. three. Fix a web diagram of all events and activities so as to stipulate consecutive and parallel events. four. Schedule the work as per the demands of the user. v. Prepare a budget for the undertaking. Project Control I. Get a feedback of the existent public presentation of the undertaking with regard to clip. cost and work of the undertaking and compare it with agendas. budgets and proficient programs. two. Take disciplinary action where required so as to keep control. Involve the User System interior decorator must inform the users sing the new information system being developed and derive their support and credence. In this stage. users are assured that alterations will profit them or that they will non be at disadvantage because of the new system. It is besides of import to take users in assurance so as to obtain information for the design of the system. This will besides assist pull offing opposition to alter and would guarantee successful execution of the system. Detailed Sub-System Definition In elaborate system design. every system needs to be broken down to determine all activities required and their several inputs and end products. In some of the instances. sub-systems are loosely defined in the conceptual design stage. but at this phase they are specifically defined to work out every item refering the sub-system. Decomposition of the system to operational activities in general is carried out as follows.

College GPA Requirements What Do You Need to Get In

College GPA Requirements What Do You Need to Get In SAT / ACT Prep Online Guides and Tips As a high school student, you may bewondering ifyour GPA is high enough to meet the admission standards at your college of choice. Not every college has specific GPA requirements, but it's possible to estimate a cutoff for admission based on statistics from previous classes. In this article, I'll explain howGPA requirements for colleges work and give you the tools to figure out exactly how high your GPA should be to apply successfully to your dream college. Do Many Colleges Have GPA Requirements? There are quite a few colleges that have minimum GPA requirements for applicants. Most of these are suggestions rather than hard limits, but they’re good guidelines to follow if you want to have a strong chance of acceptance. Colleges with minimum GPA requirements tend to be public schools.Since these schools receive larger pools of applicants, it’s much easier for them to sort students by statistics like GPA.The Massachusetts public university system is an example of a group of colleges that imposes minimum GPA requirements on applicants. In this case, students must earn at least a 3.0 weighted GPA for admission. Here are a few additional examples of schools that have minimum GPA requirements: College Name Minimum GPA Requirement University of North Carolina 2.5 (weighted) University of Mississippi 2.0 (unweighted) University of Florida 2.0 (unweighted) Portland State University 3.0 (unweighted) University of Nevada - Reno 3.0 (weighted) Grand Canyon University 3.0 (unweighted) Grand Canyon University Can You Still Get Into a College If You Don't Meet the GPA Requirements? Students who don't meet a college's GPA requirementsare less likely to make it through the initial reviewof applications unless they've done something else outstanding in high school. A college that has minimum GPA requirementsmay admit some students whohave lower grades if they show extreme promise in other areas like athletics, test scores, or extracurricular pursuits. For example, if you're a nationally ranked tennis player and will be a huge asset to the school's team, you could probably get away with a lower GPA than the college requires. This might also apply if you accomplished something unique in high school that not many other students have done, like starting your own successful business. It's possible to circumvent college GPA requirements, but you shouldn’t count on special circumstances to bail you out. Your best bet for admission is to (at the very least) surpass the minimum requirement for admitted students. Don't count on a mutant hybrid of Christian Bale and a hay bale to bail you out either. How High Does Your GPA Have to Be to Get Into College in General? Looking beyond specific schools, you may be wondering how high your GPA should be if you want to end up as a competitive applicant for colleges overall. The national average unweighted GPA for high school students is a 3.0 (a B average), but this is for all students, including those who don’t plan to attend college.Students who do attend college will have slightly higher GPAs on average. If you want a solid chance of getting into a four-year college, the lowest GPA you can get away with is probably around a 2.0 (a C average).Keep in mind that this is only enough for acceptance to the least selective schools in the country, and it’s still risky.For even mildly selective schools (think 60-80 percent acceptance), you should have at least a 3.0 unweighted GPA.Once you start thinking about even more selective colleges (less than 60 percent acceptance), GPA standards are usually around a 3.5 or higher. Notice that I’m specifically talking about unweighted GPAs here.Your school could use weighted GPAs, meaning your GPA would be out of 5.0 instead of 4.0.If this is the case, tread carefully with GPA requirements.A 4.0 weighted GPA and a 4.0 unweighted GPA are not equivalent because a weighted GPA takes course difficulty into account.A 4.0 weighted GPA could mean all Bs in high-level classes or all As in low-level classes while a 4.0 unweighted GPA means all As regardless of class level. If your weighted GPA is higher than a 4.0, that doesn’t mean you’ll be accepted to any college where you apply.Pay attention to your letter grades and your course levels to make sure you’re on track.Challenging yourself in hard classes and earning a few Bs is more impressive to colleges than a transcript full of straight As in courses that were clearly too easy for you. Do your homework while free-climbing a sheer cliff face. It's the only way to show colleges that you're committed. What Are the GPA Requirements for Your College Goals? General statistics are all well and good, but your GPA standards should really be determined by your individual college goals.You may not plan on applying to a college that provides concrete GPA requirements, but you can still estimate what it takes to get into the schools that interest you. The best way to do this is to Google â€Å"[name of college] PrepScholar admission requirements.†The first result should be a link to a page that lists admissions statistics for whatever school you chose.Before you look at the GPA statistics, notice the admissions rate.Any school that has an admission rate below 15% will be a reach no matter what GPA you have, so don’t assume that surpassing the average GPA guarantees you a spot. Let’s use UC Davis as an example.UC Davis has a 41% admission rate.This means it’s probably safe to assume that you have a solid chance of getting in if your GPA is higher than the indicated average.It’s selective, but not in the most selective group of schools (we rate it as â€Å"moderately competitive†).The average GPA at UC Davis is a 3.99 according to the article.That’s almost a perfect 4.0 - but numbers can be deceptive! Since we’re relying on the schools themselves to provide statistics about their average GPAs, the numbers are often skewed high.The 3.99 GPA probably reflects a mixture of weighted and unweighted GPAs. We don’t know for sure whether it’s out of 4.0, 4.5, or 5.0 (or some combination of different scales).This makes things much less clear-cut.There may be some students at UC Davis who had straight A’s throughout high school, but there are probably many others who got As and Bs in high-level classes at high schools that use weighted GPAs.On a weighted GPA scale out of 5.0, someone earning all Bs in high-level classes would still have a 4.0. UC Davis If you see that a school has an average GPA that’s higher than a 3.75, you can assume that you will need to take at least some advancedclasses and earn As and Bs to have a strong chance of being accepted.Unless the school’s admission rate is lower than 20 percent or so, don’t assume that most students have near-perfect grades.At Harvard, for example, the average GPA is a 4.04. This seems only a bit higher than the average at UC Davis, but with a 6 percent admissions rate and an average ACT score of 34, it's clear that Harvard is significantly more competitive. Don’t look at the average GPA as thebe-all-end-all number. It’s more of an estimate since high schools vary so dramatically and colleges calculate GPAs differently. You should also check the actual admissions websites for schools you're interested in to make sure you’re not missing out on any requirements.For University of California schools, the admissions guidelines state that nonresidents (out of state students) should earn at least a 3.4 GPA to be admitted to a UC campus. You will also need to take certain courses to be eligible for admission. UC Davis GPA statistics broken down by range and percent acceptance rate. The majority of admitted students for 2015 had GPAs above a 4.0, which indicates that these numbers are referencing a weighted GPA scale. Source: UC Davis What Should You Do If Your GPA Is too Low for Your School of Choice? If your GPA is lower than average for the schools that interest you, there are a couple of ways you can improve your chances of being accepted. If you're a freshman or sophomore, you still have time left to raise your GPA. Depending on what your specific struggles are, you might try revising your study habits in various ways. Read this article for advice on strategies you can use to improve your grades. If you're already in your junior or senior year, you don't have much (or any) time left to raise your GPA. In this case, you may try to bolster other partsof your application to make up for it. You can often compensate for a slightly below average GPA with higher than average SAT or ACT scores. At UC Davis, the average SAT score is an 1805.This is at the 75th percentile mark for SAT scores nationally, so students in the top 25% of the SAT score range (1800-2400) are most likely to be admitted.A 2100 combined with a 3.6 GPA gives you about the same chances at UC Davis as an 1800 combined with a 4.0 GPA. Beyond standardized test scores, you may also be able to make up for a lower GPA with impressive extracurricular achievements that demonstrate your passions and unique interests. This could include anything from running your own Etsy shop to organizing a Quidditch tournament at your school to building robots in your free time. If you're involved in community service or are a leader of a club, you should highlight these facts on your application. Even if you just had to work a boring part-time job throughout high school, that counts as an extracurricular activity and shows that you are capable of handling real world responsibilities. Make sure your robot doesn't gain sentience and turn against you. The Bottom Line College GPA requirements aren’t everything when it comes to admissions, but they can play a strong role in the decision-making process. To get into any four-year college, your GPA should be at least a 2.0 or higher. If you’re aiming for selective colleges (less than 60% acceptance rate), you should shoot forat least a 3.5. Remember, these estimates aren’t necessarily accurate for every student or every college.Look up admissions requirements for schools that you like to get a better sense of their academic standards.Also, keep in mind that your high school may calculate GPA differently than other schools (especially if it's recorded on a weighted scale).Your 4.0 weighted GPA won’t be as impressive as the 4.0 unweighted GPA of another student at a different high school who took higher level classes than you. Course levels are very important.You can have a GPA that’s slightly lower than a school’s average and still have a chance of getting in if you earned it in by taking the most challengingclasses your high school offers. Always continue to push yourself and work towards higher academic goals if you hope to be admitted to selective colleges. Pay attention to the levels in your application mix. What's Next? Do you have a B average but want to improve even more to get into more selective colleges? Read this article for advice on what you should do based on your current GPA. If you're aiming for the most competitive schools in the country, advanced classes are a must in high school. Find out how many AP classes you should take if you're applying to Ivy League schools. You can also consult this article for general advice on which classes to take in high school. Want to improve your SAT score by 160 points or your ACT score by 4 points?We've written a guide for each test about the top 5 strategies you must be using to have a shot at improving your score. Download it for free now:

Automation Systems Essay Example | Topics and Well Written Essays - 2000 words

Automation Systems - Essay Example According to the book of ( Mazzuchelli, 1985) "The net effect of the tremendous increase in processing power provided by the computer system is that more data can be processed faster than ever before." Which means that all information you need in your job to make decisions will be quickly available, a necessity in today's rapidly changing business environment. Business establishments implement computer systems as part of daily transactions. Some firms faces problems especially implementing an apparent solution to a problem often causes other, unanticipated problems. As automation systems replaces energy as society's man resource, many people are concerned that too much emphasis has been put on what the computer can do to streamline business and too little on how it may affect the quality of our lives. Some reasons why users resist of changes due to implementation of automation systems. One reason may be the initial cost. In a large company, it is difficult to track and fairly allocate the costs of the computer processing facility to the many different departments based on individual departmental use. Also, departments at remote locations may feel that their information needs are not being met. Some were reluctant to use the new system for fear that they would have to spend for the software, computer maintenance, diskettes, computer paper, printer ribbons, just as they had to do for the paper and a pen needed on their job. Hardware and software costs can become high when a company's departments are spread over many distant locations. Proper accountability and planning for this project would simply help the company cope on this problem. Using a decentralized computer facilities would help the company to use less sophisticated and less expensive communications hardware and software. To assure that they would be able to use the change in automation. Second, Unfamiliar to the new system. A computer specialists is responsible for the design of the automated system ended up being responsible for working in many areas of the company with which they were unfamiliar. And also users of the new automated system are not trained well they hardly understand the system. The reason is that the system is not user friendly. A reason to resist for the changes. As a result, the specialists often took a lot of time to understand the processing requirements of a new department. This problem has a great impact to the new users as it caused delays in a project and sometimes led to misunderstanding - in other words, some of the new automated system developed failed to meet the needs of the department, or failed to meet them on time. To prevent this problem, the developer must develop a user friendly automated system. Although, most employers expect their potential employees to be prepared to use computers as tools whatever field or business. In respo nse, automation system will be very helpful to firms. They felt they needed some additional skills to keep their jobs to be considered for advancement, or change to a more desirable job. Third, adopting new changes requires changing work culture. Most industries are being transformed by the use of computers. When automation of system is being implemented in a company, changes will occur. There's a change in their working routines where they will be using computers to speed up

Plagiarism Essay Example | Topics and Well Written Essays - 250 words - 6

Plagiarism - Essay Example cies of GCU, a student may be awarded an F grade for the complete course in which he has conducted academic dishonesty or F grade may be assigned to the project or the assignment in which he had conducted the act of plagiarism. If the university wishes, they may remove the student from the course or the student might have to take the course again or credit for a particular course may be deleted, this will result in failure to obtain the degree for which the student has gained education. To avoid issues that are regarded as academic dishonesty, students should refrain from such acts and instead of conducting plagiarism; they should consider options such as proper time management in order to manage educational, family and work life. At GCU, students are provided with policies that clearly state what instances are considered as plagiarism and how can one avoid plagiarism by properly giving credit to others for their work. Plagiarism software’s needed to check plagiarisms are even available so students do not conduct academic

X-ray Fluorescence Essay Example | Topics and Well Written Essays - 1500 words

X-ray Fluorescence - Essay Example J. Moseley number elements in 1913 through the observation of K-line transitions as observed in X-ray spectrum. This formed the basis of element identification through X-ray fluorescence spectroscopy by considering the relationship between the atomic number and the frequency. X-Ray fluorescence, XRF refers to the emission of characteristic secondary, also referred to as fluorescent X-rays by bombarding a material with X-rays at high energy or gamma rays so that the material gets excited. The wavelength of X-rays range between 50 and 100 A related to energy in the relationship: E = h? where h is Planck constant, 6.62 * 10-24 and ? is the frequency in Hertz. High energy X-rays would be required for XRF as the soft X-rays get absorbed by the target element, with the absorption edges depending on ionisation energies of the respective electrons, unique to each element. While the energy dispersive XRF, EDXRF methodology detects all elements from Na through to U, the wavelength dispersive X RF, WDXRF detects down to Be (Shackley 34). How XRF Works When the atoms of the target material absorb the high energy photons from the X-rays or gamma-rays, the electrons at the inner shell would be ejected from the atom transforming them to photoelectrons. As a result, the atom would be left at an excited state having a vacancy in its inner shell. The outer shell electrons would then fall into this resultant vacancy in the process emitting photons whose energy equals the difference in energy between the two states. It would be appreciated that each element has its unique energy level set, implying that each element would emit characteristic pattern of X-rays unique to itself which Sharma (527) refers to as characteristic X-rays. With increase in the concentration of the corresponding element, there would also be an increase in the X-ray intensity. This phenomenon also applies in the quantitative analysis of elements through the production of optical emission spectra. With characte ristic X-rays resulting from transition between the energy levels in an atom, the electrons that transition from energy level Ei to Ej would emit X-rays with energy Ex = Ei – Ej. With each element having unique atomic energy level set, a unique X-rays set would be emitted characteristic of the element (Sharma 526). Considering Bohr’s atomic model (see fig. 1), with atomic levels designated as K, L, M and so forth, each with additional sub-shells, a transition between these shells would result in the emission of characteristic X-rays. Fig. 1. Bohr’s atomic model from Sharma (527) As such, M X-ray would result from transition to M shell, so would K X-ray be a result of transition to K shell. K?1 X-ray would result from an electron dropping from M3 shell to fill in a vacancy in the K shell (see fig. 2). The emitted X-ray would have energy EX-ray = EK – EM3. Figure 2: X-ray line labelling from Bounakhla and Tahri (12) Sources According to Bounakhla and Tahri (21), radioisotopes provide the simplest source for configuration since one selects a source that emits X-rays slightly above the target element’s absorption edge energy. They have found wide application due to their stability and smallness in size in the context where monochromatic and continuous sources would be required. It serves well with regard to ruggedness, reliability, simplicity and in the consideration of cost of equipment. For safety, emissions would be limited to approximately 107 photons. The activity would be described in terms of disintegration rates of the radioisotopes where this activity would decrease from initial activity, A0 to final activity At for a duration of time, t. At = A0e(-0.693t/T?) where T? is the

Operations management Essay Example | Topics and Well Written Essays - 1500 words

Operations management - Essay Example This efficient and effective manner of doing any business process helps in improving the quality of any product or service offered to the customer. Quality is a major aspect in any product or service that is highly admired by a customer; hence every sane organization strives to keep up their product or service to the highest possible quality in order to be in the good books of their respective customers. According to Peter Drucker â€Å"Quality in a product or service is not what the supplier puts in. It is what the customer gets out and is willing to pay for† (Drucker, 1985). Hence it can be said that quality is a major issue that should be given utmost attention within any organization. There are two systems that assure the quality aspect within a company, quality control and quality assurance. The Tokundu airport faces major quality issues and it is because of these issues that the service of the airport is getting highly affected. If Tokundu is to deliver better service of reasonable quality and standard, it must focus on all the factors that may have an impact on the quality of the airport. As each and every aspect has certain influence upon quality, an efficient and effective Quality Management System should be introduced at the airport enhance the quality of the service offered by the airport. â€Å"Quality Management System is the organizational structure of responsibilities, activities, resources and events that together provide procedures and methods of implementation to ensure the capability of an organization to meet quality standards†(Tricker et al, 2005). Quality assurance and Quality control are two main parts of Quality Management System (QMS). Quality control satisfies quality requirements while quality assurance gives assurance that quality obligations would be satisfied. Quality control is considered pre active whilst quality assurance is considered to be pro active. Quality control involves the use of activities that ensure the quality of the outputs in any organization, it involves the activities such as supervising; checking and inspecting at all levels within the organization. Quality assurance on the other hand provides a promise that all the relevant activities being performed during the Quality control aspect are working properly and that the relevant quality standard is being achieved. To increase the confidence of customers, organizations tend to obtain Quality certification that give a proof to the customers that the organization is performing reasonably as the quality certification gives a proof to that. Quality certification is not easily attainable as it requires many formalities to be met within an organization and these certifications are provided by recognized quality certification bodies. One of the most important series of certification issued by the International Organization for Standardization is the ISO 9000 standard. ISO 9000 is a set of quality standards that deal with the issues of Quality management Systems within an organization. These standards were amended in the year 2000 and were then know as the ISO 9000:2000 series of standards. The ISO 9000:2000 has three main components which relate to 1) defining the

Visionary Idealism Essay Example | Topics and Well Written Essays - 1250 words

Visionary Idealism - Essay Example For him, the process of artistic creation holds the potential of transcending the limitations of the mind and more fully expressing the divine spirit. He also believes that art can induce within the viewer an elevated state wherein spiritual states of being are attained (Grey). In this essay, I am going to cover a brief history of his life, the progression of his art and performances, where his art is displayed and has been used, and some positive and negative reviews of his works. My purpose is to critically critique Alex Grey's artistic style and vision. Alex Grey was born in Columbus, Ohio on November 29, 1953. Being the middle child of a middle-class couple, he strove to please his father by excelling in drawing. It was his father, who was a graphic designer, who saw in him his exceptional talent and encouraged his drawing ability. As a young child he would collect insects and dead animals from around the neighborhood and bury them in the back yard. From his earliest drawings to his performances, paintings and sculptures, the themes of death and transcendence have been woven throughout (Grey). During his teenage years he lived a solitary life in a world of his own imagination that could not be easily understood by others and did not give much concern to right or wrong. His art during that time shows how confused he was about himself, and about life and spirituality. It led him to express the tearing apart, the confusion, and the duality within his being. He attended the Columbus College of Art and Design for two years (1971-73), then dropped out and painted billboards in Ohio for a year (73-74) (Grey). He then attended the Boston Museum School for one year to study with the conceptual artist Jay Jaroslav (Grey). This is also where he met his wife Allyson, the artist. During this period he had a series of entheogenically induced mystical experiences that transformed his agnostic existentialism to a radical transcendentalism (Grey). He then spent five years at Harvard Medical School working in the Anatomy department studying the human body (Grey). As expected, the earlier works of Alex Grey (both drawing and painting) are simpler and more of self portrayal. His later works have shown maturity and complexity, moving out of self but still focusing on the human anatomy. What stuck out most about his early works is how talented and detailed his lines and features are, and how almost perfectly he has recreated himself in his visual arts. His later portrayal of himself reveals his own self realization and self actualization, revealing the inner struggles and duality of his inner being. He is able to show his audience what transpires within himself and the difficulties he has been going through as he is initiated into the growing complexity of his inner and outer world. In addition, his focus on the human eye in many of his works reveals an all-knowing existence of somebody, be it himself or God or any other important person in his life, which truly affects him and all of his life. One example is the "Vision Mission." The eye is placed above, which is believed as the vision, while the hand with the pointing finger below may stand for the mission. This drawing may have a spiritual implication and may have a much deeper meaning from what is actually shown. Moreover, his

Operations management Essay Example | Topics and Well Written Essays - 1500 words

Operations management - Essay Example This efficient and effective manner of doing any business process helps in improving the quality of any product or service offered to the customer. Quality is a major aspect in any product or service that is highly admired by a customer; hence every sane organization strives to keep up their product or service to the highest possible quality in order to be in the good books of their respective customers. According to Peter Drucker â€Å"Quality in a product or service is not what the supplier puts in. It is what the customer gets out and is willing to pay for† (Drucker, 1985). Hence it can be said that quality is a major issue that should be given utmost attention within any organization. There are two systems that assure the quality aspect within a company, quality control and quality assurance. The Tokundu airport faces major quality issues and it is because of these issues that the service of the airport is getting highly affected. If Tokundu is to deliver better service of reasonable quality and standard, it must focus on all the factors that may have an impact on the quality of the airport. As each and every aspect has certain influence upon quality, an efficient and effective Quality Management System should be introduced at the airport enhance the quality of the service offered by the airport. â€Å"Quality Management System is the organizational structure of responsibilities, activities, resources and events that together provide procedures and methods of implementation to ensure the capability of an organization to meet quality standards†(Tricker et al, 2005). Quality assurance and Quality control are two main parts of Quality Management System (QMS). Quality control satisfies quality requirements while quality assurance gives assurance that quality obligations would be satisfied. Quality control is considered pre active whilst quality assurance is considered to be pro active. Quality control involves the use of activities that ensure the quality of the outputs in any organization, it involves the activities such as supervising; checking and inspecting at all levels within the organization. Quality assurance on the other hand provides a promise that all the relevant activities being performed during the Quality control aspect are working properly and that the relevant quality standard is being achieved. To increase the confidence of customers, organizations tend to obtain Quality certification that give a proof to the customers that the organization is performing reasonably as the quality certification gives a proof to that. Quality certification is not easily attainable as it requires many formalities to be met within an organization and these certifications are provided by recognized quality certification bodies. One of the most important series of certification issued by the International Organization for Standardization is the ISO 9000 standard. ISO 9000 is a set of quality standards that deal with the issues of Quality management Systems within an organization. These standards were amended in the year 2000 and were then know as the ISO 9000:2000 series of standards. The ISO 9000:2000 has three main components which relate to 1) defining the

Compare and contrast leadership and management styles. How does your Essay

Compare and contrast leadership and management styles. How does your answer help create an ethical environment - Essay Example As a function of such a definition, the reader can and should understand the management style as more of a nuts and bolts approach that tends to be somewhat formulaic and rigid whereas leadership engenders the unique ability to mold and integrate with changes as a means of seeking the best path. It is further important to understand that such a level of approach does not specify one or the other must be engaged upon. As such, it is possible and desirable for an individual to accomplish both of these styles of oversight in order to be an effective vehicle for change within a given institution. Although not all individuals can fulfill the requirements of each of these categories, the individual that does is able to see from both perspectives and seek to direct the firm/group/ or entity in the most appropriate way. With regards to ethics, the leadership and management styles play an integral role in determining the priorities of the given individual. One could even argue that ethics violations only spring from management styles if and when the management style is engrained within the company’s culture. This is due to the fact that management styles are almost always formulaic and required attributes that the individual most ascribe to in order to meet the standards of the organization or group he/she is representing to the employees. Conversely, leadership styles fall prey much more easily to ethical violations due to the fact that these are almost always more innately tied to the ability of the individual to incorporate what they heave learned from past experience, as well as their own personality into the change mechanism they are attempting to integrate with. In order to create an ethical environment, it is incumbent upon the culture and oversight mechanisms of the firm to seek to in still a strong level of ethics into the management styles that they engender with the leadership. In such a way, ethical decision making and

Political conditions of the Cold War Era Essay Example for Free

Political conditions of the Cold War Era Essay The Cold War is increasingly treated as a historical period that customarily begins in 1947, when the Truman Doctrine sought to contain communism and the expansion of Soviet influence, and ends with the decline and fall of the Soviet Union and the Eastern bloc in the late 1980s. My thoughts are that this event occurred after war world II between the Soviet Union and the United States of America due to a conflict about political, ideological, military, and economic values because the United States was capitalist when the Soviet Union was communist. During this time there was a fair that they were going to destroy each other with the arsenals of gigantic artillery. Germany was separated into 4 sections controlled by Great Britain, France, the Soviet Union and the United States and the Cold war started because there was a disagreement on unifying Germany. There were events that happened during the cold war the first was the foreign aid policies, which were able to divide the superpowers after that treaty organizations and alliances started forming up again one of these alliances was the North Atlantic Treaty Organization (NATO), as well as the Warsaw pact. The superpower were always involved in a conflict the mayor political crisis was that Soviet blockade on Western Berlin they block off supply routes to Western Berlin so the people were dying because they did not have how to cover the firs needs. Another conflict was the Cuban missile crisis it was the closest the world ever came to all-out nuclear war. Following the first sightings of the missiles being placed by Soviets, additional Russian vessels were seen heading towards Cuba carrying more missile components. Thus began what became known as â€Å"the 13 days,† a period of extremely high tension in which the Kennedy administration tried to find a way to get the missiles out of Cuba without starting World War III. Kennedy and his advisers had to walk a very tight line in order to achieve that end. In the end, Kennedy followed the path of Presidents Truman and Eisenhower as a leader determined to prevent the further spread of Communism in the world by all reasonable means. He had campaigned on the issue of a missile gap  between United States and the Soviet Union, and even his plan to place a man on the moon in the decade of the 1960s was, to a large extent, aimed at defeating the Russians in space. The military implications were obvious. It was during Kennedys administration that the most dangerous point in the Cold War was reached: the Cuban Missile Crisis of October 1962. http://www.academicamerican.com/postww2/coldwar.html Presidents and Prime Ministers on either side came and went but the war never ended. Every President of the United States took the war personally as a Commander in Battle and it became a competition of who would do better. Finally, it was the Republican George W. Bush who called the final shots and that too because Mikhael Gorbachev backed down. http://www.historyking.com/World-War/cold-war/Summary-Of-The-Cold-War.html Explain the specific threats to American citizens One threat that is becoming more severe in the post-Cold War world is the proliferation of chemical, biological, nuclear, and missile technology. The probability of a retaliatory strike on the U.S. homeland by rogue states or terrorist groups using such weapons, however, can be reduced by ending unneeded and provocative U.S. military intervention abroad. Politicians of both parties often tapped into that fear and ran for office based on how strong they would be against communists. Fighting communism always involved the threat of nuclear war since both the U.S. and Soviet Union had nuclear weapons trained on each other. President Dwight Eisenhowers military plan relied on nuclear stockpiles rather than land forces. He hoped the threat of nuclear destruction would restrain the Soviets. http://www.tn4me.org/minor_cat.cfm/minor_id/23/major_id/10/era_id/8 Describe the preparations you would make to protect your family Those are my thoughts , it is important to have things that are going to be necessaries to survive in this situation as water medical and food the family can survive if they go to the close shelter they usually have a wonderful staff to help those who need them. It s important to keep the medication close and accessible. Conclude with one question for further study on the Cold War era What effect did the Cold War have on the political, economic, social, and  military conditions of the world’s nations? Conclusion Cold War as a period which began with the rivalities of the superpowers The effort to contain communism and capitalism (and covertly subvert the other), however, entailed a larger containment or channeling of the flow of possible change in various areas of political, social, and cultural life within its political imagination. The Cold War rivalry sustained an equilibrium which tended to freeze not only the power relations between hegemonic and client states but also the political contours of nation-states in the two camps backed by economic inducements, military power, and nuclear threat.

Strengths and Weaknesses of Crime Statistics and Victimisation Surveys

Strengths and Weaknesses of Crime Statistics and Victimisation Surveys Rates of crime are recorded using two key sources; Police Recorded Crime (PRC) and Victimisation Surveys. Both will be explored and examined to see how they can, effectively assist policy makers in targeting areas for change. In addition the advantages and disadvantages of each method will be discussed along with their similarities and differences. To understand why it is important to record crime levels, three key notions must be clarified. Firstly, crime is legally defined as any act or omission outlawed by the criminal law and thus punishable (Odgers,1911). Secondly, the purpose of the judicial system is to enforce the law and protect victims of crime. Thirdly, criminal guilt relates to premeditated intention. Universal law is non-existent; therefore each country or locality has its own legal system. The shared aim is to hold person/s accountable for their behaviour. Substructures of the judiciary may focus on specific areas of interest. These may include the courts, and penal system and constabulary. The role of the courts and penal system is specific. It is in place to serve and protect the innocent, to pass judgement on the guilt or innocence of persons presented and to serve a proportionate punishment in response to the criminal act committed. Any form of justice served must remember the civil liberties of all concerned, including the offender. Crime prevention and law enforcement are a separate division provided by the constabulary. The term criminal guilt stems from two fundamental Latin principles. These are actus reus which translates as bad act and mens rea guilty mind. The accused must be found to have committed actus reus with the willing intention to perpetrate the act and/or to have assessed the risk i.e. accident or fear may be experienced as a direct result of the action (Dubber, Markus D. (2002). Few exceptions to being found guilty of one of these alone exist, these concern whether a person can be fully answerable for their actions. Examples of mens rea without actus reus can relate to crimes, where although the action is deemed illegal, the act may not have the deliberate intention to harm another. Examples of this could involve driving at excessive speed, an act of accidental manslaughter or self-defence. (law.jrank.org) Two comparable sources are used to measure crime rates within the UK. Police recorded crime measures the volume of notifiable offences committed over a fixed period, within the jurisdiction that the constabulary serves. Crime-related statistics are obtained at request of the British Home Office, where they are collated, analysed, and published throughout the year. The figures provide the government and the public with a summarised account of the information obtained. They aim to reveal and compare crime rates within specific localities. They are also used to demonstrate the effectiveness of policing. This information can be used to suggest areas for improvement and assist in the constant struggle to prevent crime occurring. The second method that is utilised, verifies the extent to which crime is perpetrated and is a valuable tool when combatting crime. Victimisation surveys; primarily recognised as the British Crime Survey (BCS) is a form of crime-related statistical research that was established in 1982. It was introduced in response for an alternative complementary system to exist alongside using police records alone. It aimed to gather intelligence on the public attitudes towards crime and their opinions relating to the judicial system. Although operationally independent from any government body, the BCS is still conducted for the British Home Office (First BCS report, Hough and Mayhew, 1983). The survey confidentially canvasses in the region of forty to fifty thousand individuals (Office for National Statistics, 2005) to uncover various information relating to crime-related experiences, including anti-social behaviour and police interaction and response to criminal activity. The people questioned span various demographics and aim to be representative of society. They are interviewed anonymously via door to door visits or telecommunications. Police recorded crime statistics are easy to conduct and provide a good measure of criminal cases both regionally and nationally. Because the statistics are compiled from police reports readily available, the only additional cost incurred involves the information being sent, analysed and evaluated. Over time re-occurring inclines and declines in illegal behaviour can be identified and used when analysing patterns of crime, in particular to risk assess, highlight and tackle crime hotspots. Crime statistics can also indicate the workload and performance level of police forces throughout the country.  [1]   An indication of a reduction in crime related incidents could boost public morale. If necessary the findings could influence change surrounding governing policy. For example, the allocation or re-allocation of specific resources within a police department could lead to a more efficient service. Identifying the need to place patrol officers where the greatest street crime occurs would be one way to maximise effectiveness of the police service. Unless a crime has been reported to the police and they have classified it as criminal it will not be included. This means that all minor misdemeanours that would be trialled as summary offences in court such as, crimes relating to anti social behaviour, assault, disorderly conduct and criminal trespass, along with most either-way offences for example theft and drug offences are excluded from being recorded  [2]  . This highlights one of the main failings of this form of data collection as it leads to discrepancies when analysing the results, especially when comparing between PRC and victimisation surveys. Data collection and recording of PRC statistics are affected by the regulations implemented by the current governing body  [3]  . The results uncovered may point to a rise in criminal acts being committed. This could have a negative impact on society. As a result the published findings could become biased and used as propaganda to mislead people into believing that crime rates are more favourable than factual. In some situations the volume of crime could be falsely recorded to meet performance and administrative targets (Chambliss, 2001). This is in direct contradiction of providing a good service to the public. British crime surveys are independent from government reports and not affected by changes in how crime is reported and documented. They play an important role in serving the public interest and governing change and policy. They provide a better indication relating to long-term trends of crime within society  [4]  , in particular highlighting crimes which affect different sociological groups. For example, crimes against women and those which affect minority groups such as the vulnerable, mentally ill, the disadvantaged and ethnic minorities. The BCS provides statistics which demonstrate the extent to which crime occurs. It accounts for minor offences, antisocial behaviour and victimless crime such as fraud. It also includes household and personal crime which may not be otherwise reported or deemed a criminal act  [5]  . The BCS is constantly changing to adapt to new concerns affecting society  [6]  . Recent expansion has seen the inclusion of acts committed against minors such as gadget theft which has seen a vast increase as technology advances; however this is only in the testing stage and is yet to be fully implemented. It has also seen the inclusion of crimes relating to identity theft  [7]  . The confidential method of surveying is flexible and can reach a wide proportion of people. Interviews conducted may take place at home, by visiting door to door or over the telephone. This can motivate people to openly speak their mind about their experiences and concerns. It may also lead to the discussion of topics of a sensitive nature for example, being the victim of racially incited or homophobic hate crimes, which they may not have wanted to report. This may be due to shame, embarrassment, a fear of repercussions or not being believed or taken seriously by the police service  [8]  . Over all the BCS appears to paint a broader picture of how a variety of crime-related issues really affect a range of varied people. Perhaps this is because they take the initiative and seek to learn more. Shortcomings surrounding this form of canvassing is that it is very costly to conduct, not only in man power but also time and resources. The effectiveness is questionable as the results gathered rely on a persons honesty and personal insight in to how they have been affected which may provide exaggerated responses or false information. The BCS also excludes the recording of commercial crimes and heinous crime such as murder. However, the Commercial Victimisation Survey and the Offending Crime and Justice Survey are both in place to ensure that crimes outside the boundaries of the BCS are still accounted for  [9]  . In summary, I have explored both methods used to research crime statistics and outlined the strengths and weaknesses of each. For example, The BCS relies on the respondents personal view of the effect of crime. PRC assumes that crime is always reported. Both methods are dependent on the classification of crime. Victimisation surveys fail to provide an accurate depiction of society. This is because surveys of this form assume that people interviewed can and will provide a reliable version of events. An effective source of information can not solely rely on the integrity and factual representation of those it surveys. Individual perception can vary hugely, and factors such as differences between living in a rural versus urban location and coming from differing socio-economic backgrounds can lead to ambiguous results. For example, certain groups of people may be targeted more or less than indicated. If these variables are not taken in to account then the measure of crime rates could be distorted and the overall findings in relation to the sample population unfounded. Overall it can be seen that both the BCS and PRC are adequate methods for collecting information. When trying to measure crime the most effective method is to examine BCS and PRC together as the results combined provide a more com prehensive picture of how crime really affects society.

Finland: Nationalism, Development, and Values Essay -- World War II, Ru

While Finland is a rather young country in terms of independence, seeing that it was only in 1917 that it became independent, it is a country that has had a constant development of nationalism, values, and national identity. Finnish nationalism is highly shaped by its past before it was an independent country and by its neighbor, Russia. It also is affected by the three Wars which would involve its neighbor Russia. The three wars fought in WWII, events leading up to them, and their end results are all key points in developing Finnish Nationalism. These wars are the Winter War (1939-40) and the Continuation War (1941-44) in which Finland fought the Russians during WWII. Lastly, is the Lapland War (1944-45) in which the Finnish retreated from the Germans. These wars had lasting effects up until 1991 and dissolution of the USSR, making them huge factors on Finnish nationalism (Historical Highlights) . The effects of WWII would be gruesome for Finland and help shape its nationali sm for Finland today. Finland was originally an independent country when it was settled by Laps in about the year 700. This independence was short lived after it was incorporated into the Kingdom of Sweden in the twelfth century for nearly 700 years. Swedish would become the dominant language. Under Swedish rule, Finland would be introduced to Roman Catholicism. This would help to include Finland with the western culture. Also, Finland would come to experience similar economic and social experiences that Sweden would. Finland would nearly have no sense of national identity for a period of time. Finland would essentially be considered a part of Sweden. Then, in 1807, Finland would be conquered by Russia and remain a part of Russia up until its inde... ...allenge to Peacemakers (Mar., 1944), pp.33-38. Kirby, David (2006). A concise history of Finland. Cambridge: Cambridge University Press. p. 343. Manninen, Laura. "War and Remembrance: An Aftermath of the Lapland War." Ethnologia Scandinavica 21(1991):53-63. Reese, Roger R. "Surrender And Capture In The Winter War And Great Patriotic War: Which Was The Anomaly?." Global War Studies 8.1 (2011): 87-98. Historical Abstracts. Web. 5 Dec. 2013. Tillotson, H.M. (1993). Finland at peace & war 1918–1993. Michael Russell. Trueman, Chris. "The Winter War 1939." The Winter War 1939. HistoryLearningSite.co.uk, n.d. Web. 9 Dec 2013. . cited Vares, Vesa. "Creating A State And National Identity. Finland And Europe: 1918-1922." Valahian Journal Of Historical Studies 14.(2010): 79-104. Historical Abstracts. Web. 7 Dec. 2013.

Murder (Abolition of Death Penalty) Act 1965

Abolition of The Death Penalty 1040 Words 5 Pages The Abolishment of the Death Penalty As Americans we live in a modern republic under a government constructed to secure the rights of the people. Today's government and judicial systems were forged by our founding fathers as they fought to establish a government free from tyranny and brutality and thereby forming a constitution based on civil liberties. Our country has grown and matured through the centuries and in effect has made changes and alterations as innovations and advancements have deemed necessary. One area where we seem to have evolved at a slower rate is in the archaic and often inhumane judicial laws of the death penalty. The death penalty, a law which strips the civil liberties and violates the human rights of the accused offender, needs to be abolished. If as a nation we are to uphold our integrity it is imperative that the United States embrace the worldwide movement toward the complete abolition of the inhumane act of capital punishment. Intense controversy over the legality of the death penalty in the United States has always been multi-faceted and emotionally charged. Constitutional lawyers insist the founding fathers made provision for the death penalty in the 5th amendment which guarantees â€Å"due process of law before a person can be deprived of life, liberty or property†, while ignoring the 8th amendment which bars cruel and unusual punishments (Singh, 2003). There is no constitutional amendment that gives state or federal governments the authority to proclaim death as a penalty. This is an assumption based on the methods of punishment used in the era of the first colonies. The archaic â€Å"eye for an eye†, â€Å"Annie get your gun† justice has regressed into a self-justifying realm of indecision where it is easier continue in conventional tradition. We need to demand the legal system be held accountable to constitutional laws as written not as interpreted based on history. Death by hanging, firing squads, electrocution, the gas chamber and death by lethal injection are all options still available to those on death row. Each one in progression a little more civilized then the one before it, or so society attempts to convince themselves. The courts, as well as society, need to stop accepting and allowing these gruesome acts of purposely killing another human in the name of justice. In recent centuries the majority of American citizens supported the death penalty believing it served both as a deterrent and as an appropriate response to particularly heinous crimes. Unquestionably, there are heinous acts of crime being committed. Yes, these crimes need to be addressed, victims and their families need validation and offenders needed to be prosecuted, punished and kept from harming others. Yet, in our imperfect legal system and often overzealous prosecution mistakes are inevitable. Seemingly conclusive circumstantial evidence, coerced confessions, emotionally biased witness testimonies, inadequate legal representation and community pressure all fatal ingredients that could lead to a life altering mistake by a jury of the accused peers or a presiding judge. It could be argued that death is what murderers deserve. However, requiring that the punishment fit the crime is an unacceptable principle, we would then have to apply this to all crimes such as rape, assault and torture. While punishment needs to be proportionate to the offense and retribution is sought, these are not sound and objective reasoning for the death penalty. Although some advocates for the death penalty would argue that its merits are worth the occasional execution of innocent people, to maintain the death penalty in the failures of the system is unacceptable (ACLU 2011). Eighty-four years ago, Judge Learned Hand said, â€Å"Our procedure has been always haunted by the ghost of the innocent man convicted† (Law ; Social Inquiry, 2009). The argument for a deterrent of violent crimes cannot be upheld consistently or statistically as a rational determinant. We need to stop allowing our legal system to play off of emotion and the human desire for retribution and begin to acknowledge alternative sentencing such as life in prison without parole. This is more humane as well as cost effective, due to less court appeal fees, separate housing and security costs, and the need for victim validation through life-long punishment is still fulfilled. The death penalty should no longer be a legal option. Once, unequivocally accepted worldwide for a variety of crimes, the death penalty has been widely outlawed in today's progressive society. The United Nations General Assembly imposed a policy that states throughout the world, it is desirable to â€Å"progressively restrict the number of offenses for which the death penalty might be imposed, with a view to the desirability of abolishing this punishment†. As of recent, 140 countries, more than two-thirds of the countries in the world have now abolished the death penalty in law or practice (Amnesty International, 2012). How can America remain influential in speaking with other nations about human rights and civil liberties while leading their own convicted citizens to death row? We need to step out of the hypocrisy and stand with these other countries worldwide and abolish the death penalty. Everyday American school children recite the Pledge of Allegiance in their classrooms repeating â€Å"for liberty and justice for all.† American junior and senior high school students are being taught the history of the United States, the Constitution and Bill or Rights. They learn about civil liberties, American freedoms and the justice of the legal system. Yet, we are not providing them with examples when we continue to implement the death penalty. In an ever advancing country where liberal thinking and tolerance, equality and human rights are encouraged by leaders, we still hold fast to an archaic and unthinkable law, the death penalty. We need to hear the truth in the words of the framers of the constitution, the voice of the world and the cry of those who are appalled by the violation of human rights. The people of this free nation need, with one voice, to call for the abolition of the death penalty.ReferencesAmerican Civil Liberties Union and the ACLU Foundation, 2012, Retrieved March 9, 2012, http://www.aclu.org/capital-punishment/case-against-death-penaltyAmnesty International, 2012,Retrieved March 9, 2012, http://www.amnesty.org/en/death-penalty/abolitionist-and-retentionist-countriesLaw & Social Inquiry, Volume 34, Issue 3, 603–633, summer 2009 Robert Singh, PhD, Governing America: The Politics of a Divided Democracy, 2003

Live and Let Live

The Hitchhikers Guide to the Internet 1 The Hitchhikers Guide to the Internet Ed Krol [email  protected] cso. uiuc. edu Get any book for free on: www. Abika. com Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet 2 This document was produced through funding of the National Science Foundation. Copyright (C) 1987, by the Board of Trustees of The University of Illinois. Permission to duplicate this document, in whole or part, is granted provided reference is made to the source and this copyright is included in whole copies. This document assumes that one is familiar with the workings of a non-connected simple IP network (e. . a few 4. 2 BSD systems on an Ethernet not connected to anywhere else). Appendix A contains remedial information to get one to this point. Its purpose is to get that person, familiar with a simple net, versed in the â€Å"oral tradition† of the Internet to the point that that net can be connected to the Internet with little dang er to either. It is not a tutorial, it consists of pointers to other places, literature, and hints which are not normally documented. Since the Internet is a dynamic environment, changes to this document will be made regularly. The author welcomes comments and suggestions.This is especially true of terms for the glossary (definitions are not necessary). In the beginning there was the ARPAnet, a wide area experimental network connecting hosts and terminal servers together. Procedures were set up to regulate the allocation of addresses and to create voluntary standards for the network. As local area networks became more pervasive, many hosts became gateways to local networks. A network layer to allow the interoperation of these networks was developed and called IP (Internet Protocol). Over time other groups created long haul IP based networks (NASA, NSF, states†¦ ). These nets, too, interoperate because of IP.The collection of all of these interoperating networks is the Internet. Two groups do much of the research and information work of the Internet (ISI and SRI). ISI (the Informational Sciences Institute) does much of the research, standardization, and allocation work of the Internet. SRI International provides information services for the Internet. In fact, after you are connected to the Internet most of the information in this document can be retrieved from the Network Information Center (NIC) run by SRI. Operating the Internet Each network, be it the ARPAnet, NSFnet or a regional network, has its own operations center.The ARPAnet is run by Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet BBN, Inc. under contract from DARPA. Their facility is called the Network Operations Center or NOC. Cornell University temporarily operates NSFnet (called the Network Information Service Center, NISC). It goes on to the -2regionals having similar facilities to monitor and keep watch over the goings on of their portion of the Internet. In addition, they all should have some knowledge of what is happening to the Internet in total.If a problem comes up, it is suggested that a campus network liaison should contact the network operator to which he is directly connected. That is, if you are connected to a regional network (which is gatewayed to the NSFnet, which is connected to the ARPAnet†¦ ) and have a problem, you should contact your regional network operations center. 3 RFCs The internal workings of the Internet are defined by a set of documents called RFCs (Request for Comments). The general process for creating an RFC is for someone wanting something formalized to write a document describing the issue and mailing it to Jon Postel ([email  protected] edu).He acts as a referee for the proposal. It is then commented upon by all those wishing to take part in the discussion (electronically of course). It may go through multiple revisions. Should it be generally accepted as a good idea, it will be assigned a number and filed with the RFCs. The RFCs can be divided into five groups: required, suggested, directional, informational and obsolete. Required RFC's (e. g. RFC-791, The Internet Protocol) must be implemented on any host connected to the Internet. Suggested RFCs are generally implemented by network hosts. Lack of them does not preclude access to the Internet, but may impact its usability.RFC-793 (Transmission Control Protocol) is a suggested RFC. Directional RFCs were discussed and agreed to, but their application has never come into wide use. This may be due to the lack of wide need for the specific application (RFC-937 The Post Office Protocol) or that, although technically superior, ran against other pervasive approaches (RFC-891 Hello). It is suggested that should the facility be required by a particular site, animplementation be done in accordance with the RFC. This insures that, should the idea be one whose time has come, the implementation will be in accordance with some standard and will be generally usable.Informational RFCs contain factual information about the Internet and its operation (RFC-990, Assigned Numbers). Finally, as the Internet and technology have grown, some RFCs have become unnecessary. These obsolete RFCs cannot be ignored, however. Frequently when a change is made to some RFC that causes a new one to be issued obsoleting others, the new RFC only contains explanations and motivations for the change. Understanding the model on which the whole facility is based may involve reading the original and subsequent RFCs Get any book for free on: www. Abika. comThe Hitchhikers Guide to the Internet on the topic. -3(Appendix B contains a list of what are considered to be the major RFCs necessary for understanding the Internet). 4 The Network Information Center The NIC is a facility available to all Internet users which provides information to the community. There are three means of NIC contact: network, telephone, and mail. The network accesses are t he most prevalent. Interactive access is frequently used to do queries of NIC service overviews, look up user and host names, and scan lists of NIC documents. It is available by using %telnet sri-nic. rpa on a BSD system and following the directions provided by a user friendly prompter. From poking around in the databases provided one might decide that a document named NETINFO:NUG. DOC (The Users Guide to the ARPAnet) would be worth having. It could be retrieved via an anonymous FTP. An anonymous FTP would proceed something like the following. (The dialogue may vary slightly depending on the implementation of FTP you are using). %ftp sri-nic. arpa Connected to sri-nic. arpa. 220 SRI_NIC. ARPA FTP Server Process 5Z(47)-6 at Wed 17-Jun-87 12:00 PDT Name (sri-nic. arpa:myname): anonymous 331 ANONYMOUS user ok, send real ident as password.Password: myname 230 User ANONYMOUS logged in at Wed 17-Jun-87 12:01 PDT, job 15. ftp; get netinfo:nug. doc 200 Port 18. 144 at host 128. 174. 5. 50 a ccepted. 150 ASCII retrieve of NUG. DOC. 11 started. 226 Transfer Completed 157675 (8) bytes transferred local: netinfo:nug. doc remote:netinfo:nug. doc 157675 bytes in 4. 5e+02 seconds (0. 34 Kbytes/s) ftp; quit 221 QUIT command received. Goodbye. (Another good initial document to fetch is NETINFO:WHAT-THE-NIC-DOES. TXT)! Questions of the NIC or problems with services can be asked of or reported to using electronic mail. The following addresses can be used: [email  protected]ARPA requests [email  protected] ARPA General user assistance, document User registration and WHOIS updates Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet [email  protected] ARPA Hostname and domain changes and updates [email  protected] ARPA SRI-NIC computer operations [email  protected] ARPA Comments on NIC publications and services -4For people without network access, or if the number of documents is large, many of the NIC documents are available in printed form for a small charge. One frequently ordered document for starting sites is a compendium of major RFCs.Telephone access is used primarily for questions or problems with network access. (See appendix B for mail/telephone contact numbers). 5 The NSFnet Network Service Center The NSFnet Network Service Center (NNSC) is funded by NSF to provide a first level of aid to users of NSFnet should they have questions or encounter problems traversing the network. It is run by BBN Inc. Karen Roubicek ([email  protected] nsf. net) is the NNSC user liaison. The NNSC, which currently has information and documents online and in printed form, plans to distribute news through network mailing lists, bulletins, newsletters, and online reports.The NNSC also maintains a database of contact points and sources of additional information about NSFnet component networks and supercomputer centers. Prospective or current users who do not know whom to call concerning questions about NSFnet use, should contact the NN SC. The NNSC will answer general questions, and, for detailed information relating to specific components of the Internet, will help users find the appropriate contact for further assistance. (Appendix B) Mail Reflectors The way most people keep up to date on network news is through subscription to a number of mail reflectors.Mail reflectors are special electronic mailboxes which, when they receive a message, resend it to a list of other mailboxes. This in effect creates a discussion group on a particular topic. Each subscriber sees all the mail forwarded by the reflector, and if one wants to put his â€Å"two cents† in sends a message with the comments to the reflector†¦. The general format to subscribe to a mail list is to find the address reflector and append the string -REQUEST to the mailbox name (not the host name). For example, if you wanted to take part in the mailing list for NSFnet reflected by [email  protected]NSF. NET, one sends a request to Get any book f or free on: www. Abika. com The Hitchhikers Guide to the Internet [email  protected] NSF. NET. This may be a wonderful scheme, but the problem is that you must know the list exists in the first place. It is suggested that, if you are interested, you read the mail from one list (like NSFNET) and you will probably become familiar with the existence of others. A registration service for mail reflectors is provided by the NIC in the files NETINFO:INTEREST-GROUPS-1. TXT, NETINFO:INTEREST-GROUPS-2. TXT, and NETINFO:INTEREST-GROUPS3.TXT. The NSFNET mail reflector is targeted at those people who have a day to day interest in the news of the NSFnet (the backbone, regional network, and Internet inter-connection site workers). The messages are reflected by a central location and are sent as separate messages to each subscriber. This creates hundreds of messages on the wide area networks where bandwidth is the scarcest. There are two ways in which a campus could spread the news and not cause these messages to inundate the wide area networks. One is to re-reflect the message on the campus.That is, set up a reflector on a local machine which forwards the message to a campus distribution list. The other is to create an alias on a campus machine which places the messages into a notesfile on the topic. Campus users who want the information could access the notesfile and see the messages that have been sent since their last access. One might also elect to have the campus wide area network liaison screen the messages in either case and only forward those which are considered of merit. Either of these schemes allows one message to be sent to the campus, while allowing wide distribution within. Address Allocation Before a local network can be connected to the Internet it must be allocated a unique IP address. These addresses are allocated by ISI. The allocation process consists of getting an application form received from ISI. (Send a message to [email  protected] arpa and ask for the template for a connected address). This template is filled out and mailed back to hostmaster. An address is allocated and e-mailed back to you. This can also be done by postal mail (Appendix B). IP addresses are 32 bits long. It is usually written as four decimal numbers separated by periods (e. . , 192. 17. 5. 100). Each number is the value of an octet of the 32 bits. It was seen from the beginning that some networks might choose to organize themselves as very flat (one net with a lot of nodes) and some might organize hierarchically -6(many interconnected nets with fewer nodes each and a backbone). Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet To provide for these cases, addresses were differentiated into class A, B, and C networks. This classification had to with the interpretation of the octets.Class A networks have the first octet as a network address and the remaining three as a host address on that network. Class C addresses have thre e octets of network address and one of host. Class B is split two and two. Therefore, there is an address space for a few large nets, a reasonable number of medium nets and a large number of small nets. The top two bits in the first octet are coded to tell the address format. All of the class A nets have been allocated. So one has to choose between Class B and Class C when placing an order. (There are also class D (Multicast) and E (Experimental) formats.Multicast addresses will likely come into greater use in the near future, but are not frequently used now). In the past sites requiring multiple network addresses requested multiple discrete addresses (usually Class C). This was done because much of the software available (not ably 4. 2BSD) could not deal with subnetted addresses. Information on how to reach a particular network (routing information) must be stored in Internet gateways and packet switches. Some of these nodes have a limited capability to store and exchange routing i nformation (limited to about 300 networks).Therefore, it is suggested that any campus announce (make known to the Internet) no more than two discrete network numbers. If a campus expects to be constrained by this, it should consider subnetting. Subnetting (RFC-932) allows one to announce one address to the Internet and use a set of addresses on the campus. Basically, one defines a mask which allows the network to differentiate between the network portion and host portion of the address. By using a different mask on the Internet and the campus, the address can be interpreted in multiple ways.For example, if a campus requires two networks internally and has the 32,000 addresses beginning 128. 174. X. X (a Class B address) allocated to it, the campus could allocate 128. 174. 5. X to one part of campus and 128. 174. 10. X to another. By advertising 128. 174 to the Internet with a subnet mask of FF. FF. 00. 00, the Internet would treat these two addresses as one. Within the campus a mask of FF. FF. FF. 00 would be used, allowing the campus to treat the addresses as separate entities. (In reality you don't pass the subnet mask of FF. FF. 00. 0 to the Internet, the octet meaning is implicit in its being a class B address). A word of warning is necessary. Not all systems know how to do subnetting. Some 4. 2BSD systems require additional software. 4. 3BSD systems subnet as released. Other devices -7and operating systems vary in the problems they have dealing with subnets. Frequently these machines can be used as a leaf on a network but not as a gateway within the subnetted portion of the network. As time passes and more systems become 4. 3BSD based, these problems should disappear. 7 Get any book for free on: www. Abika. om The Hitchhikers Guide to the Internet There has been some confusion in the past over the format of an IP broadcast address. Some machines used an address of all zeros to mean broadcast and some all ones. This was confusing when machines of both type were connected to the same network. The broadcast address of all ones has been adopted to end the grief. Some systems (e. g. 4. 2 BSD) allow one to choose the format of the broadcast address. If a system does allow this choice, care should be taken that the all ones format is chosen. (This is explained in RFC-1009 and RFC-1010). 8Internet Problems There are a number of problems with the Internet. Solutions to the problems range from software changes to long term research projects. Some of the major ones are detailed below: Number of Networks When the Internet was designed it was to have about 50 connected networks. With the explosion of networking, the number is now approaching 300. The software in a group of critical gateways (called the core gateways of the ARPAnet) are not able to pass or store much more than that number. In the short term, core reallocation and recoding has raised the number slightly.By the summer of '88 the current PDP-11 core gateways will be replaced with BB N Butterfly gateways which will solve the problem. Routing Issues Along with sheer mass of the data necessary to route packets to a large number of networks, there are many problems with the updating, stability, and optimality of the routing algorithms. Much research is being done in the area, but the optimal solution to these routing problems is still years away. In most cases the the routing we have today works, but sub-optimally and sometimes unpredictably. -8-Trust Issues Gateways exchange network routing information. Currently, most gateways accept on faith that the information provided about the state of the network is correct. In the past this was not a big problem since most of the gateways belonged to a single administrative entity (DARPA). Now with multiple wide area networks under different administrations, a rogue gateway somewhere in the net could cripple the Internet. There is design work going on to solve both the problem of Get any book for free on: www. Abika. com T he Hitchhikers Guide to the Internet gateway doing unreasonable things and providing enough information to reasonably route data between multiply connected networks (multi-homed networks). Capacity & Congestion Many portions of the ARPAnet are very congested during the busy part of the day. Additional links are planned to alleviate this congestion, but the implementation will take a few months. 9 These problems and the future direction of the Internet are determined by the Internet Architect (Dave Clark of MIT) being advised by the Internet Activities Board (IAB).This board is composed of chairmen of a number of committees with responsibility for various specialized areas of the Internet. The committees composing the IAB and their chairmen are: Committee Chair Autonomous Networks Deborah Estrin End-to-End Services Bob Braden Internet Architecture Dave Mills Internet Engineering Phil Gross EGP2 Mike Petry Name Domain Planning Doug Kingston Gateway Monitoring Craig Partridge Internic Jake Feinler Performance & Congestion ControlRobert Stine NSF Routing Chuck Hedrick Misc. MilSup Issues Mike St.Johns Privacy Steve Kent IRINET Requirements Vint Cerf Robustness & Survivability Jim Mathis Scientific Requirements Barry Leiner Note that under Internet Engineering, there are a set of task forces and chairs to look at short term concerns. The chairs of these task forces are not part of the IAB. -9Routing Routing is the algorithm by which a network directs a packet from its source to its destination. To appreciate the problem, watch a small child trying to find a table in a restaurant. From the adult point of view the structure of the dining room is seen and an optimal route easily chosen.The child, however, is presented with a set of paths between tables where a good path, let alone the optimal one to the goal is not discernible. *** A little more background might be appropriate. IP gateways (more correctly routers) are boxes which have connections to multiple networks and pass traffic between these nets. They decide how the packet is to be sent based on the information in the IP header of the packet and the state of the network. Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet Each interface on a router has an unique address appropriate to the network to which it is connected.The information in the IP header which is used is primarily the destination address. Other information (e. g. type of service) is largely ignored at this time. The state of the network is determined by the routers passing information among themselves. The distribution of the database (what each node knows), the form of the updates, and metrics used to measure the value of a connection, are the parameters which determine the characteristics of a routing protocol. Under some algorithms each node in the network has complete knowledge of the state of the network (the adult algorithm).This implies the nodes must have larger amounts of local storage and enough CPU to search the large tables in a short enough time (remember this must be done for each packet). Also, routing updates usually contain only changes to the existing information (or you spend a large amount of the network capacity passing around megabyte routing updates). This type of algorithm has several problems. Since the only way the routing information can be passed around is across the network and the propagation time is non-trivial, the view of the network at each node is a correct historical view of the network at varying times in the past. The adult algorithm, but rather than looking directly at the dining area, looking at a photograph of the dining room. One is likely to pick the optimal route and find a bus-cart has moved in to block the path after the photo was taken). These inconsistencies can cause circular routes (called routing loops) where once a packet enters it is routed in a closed path until its time to live (TTL) field expires and it is discarded. Other algorithms may know about only a subset of the network. To prevent loops in these protocols, they are usually used in a hierarchical network.They know completely about their own area, but to leave that area they go to one particular place (the default gateway). Typically these are used in smaller networks (campus, regional†¦ ). -10Routing protocols in current use: Static (no protocol-table/default routing) Don't laugh. It is probably the most reliable, easiest to implement, and least likely to get one into trouble for a small network or a leaf on the Internet. This is, also, the only method available on some CPU-operating system combinations.If a host is connected to an Ethernet which has only one gateway off of it, one should make that the default gateway for the host and do no other routing. (Of course that gateway may pass the reachablity information somehow on the other side of itself). One word of warning, it is only with extreme caution that one should use static ro utes in the middle of a network 10 Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet which is also using dynamic routing. The routers passing dynamic information are sometimes confused by conflicting dynamic and static routes.If your host is on an ethernet with multiple routers to other networks on it and the routers are doing dynamic routing among themselves, it is usually better to take part in the dynamic routing than to use static routes. 11 RIP RIP is a routing protocol based on XNS (Xerox Network System) adapted for IP networks. It is used by many routers (Proteon, cisco, UB†¦ ) and many BSD Unix systems BSD systems typically run a program called â€Å"routed† to exchange information with other systems running RIP. RIP works best for nets of small diameter where the links are of equal speed.The reason for this is that the metric used to determine which path is best is the hop-count. A hop is a traversal across a gateway. So, all machin es on the same Ethernet are zero hops away. If a router connects connects two networks directly, a machine on the other side of the router is one hop away†¦. As the routing information is passed through a gateway, the gateway adds one to the hop counts to keep them consistent across the network. The diameter of a network is defined as the largest hop-count possible within a network. Unfortunately, a hop count of 16 is defined as infinity in RIP meaning the link is down.Therefore, RIP will not allow hosts separated by more than 15 gateways in the RIP space to communicate. The other problem with hop-count metrics is that if links have different speeds, that difference is not -11reflected in the hop-count. So a one hop satellite link (with a . 5 sec delay) at 56kb would be used instead of a two hop T1 connection. Congestion can be viewed as a decrease in the efficacy of a link. So, as a link gets more congested, RIP will still know it is the best hop-count route and congest it eve n more by throwing more packets on the queue for that link.The protocol is not well documented. A group of people are working on producing an RFC to both define the current RIP and to do some extensions to it to allow it to better cope with larger networks. Currently, the best documentation for RIP appears to be the code to BSD â€Å"routed†. Routed The ROUTED program, which does RIP for 4. 2BSD systems, Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet has many options. One of the most frequently used is: â€Å"routed -q† (quiet mode) which means listen to RIP information but never broadcast it.This would be used by a machine on a network with multiple RIP speaking gateways. It allows the host to determine which gateway is best (hopwise) to use to reach a distant network. (Of course you might want to have a default gateway to prevent having to pass all the addresses known to the Internet around with RIP). There are two ways to insert stat ic routes into â€Å"routed†, the â€Å"/etc/gateways† file and the â€Å"route add† command. Static routes are useful if you know how to reach a distant network, but you are not receiving that route using RIP. For the most part the â€Å"route add† command is preferable to use.The reason for this is that the command adds the route to that machine's routing table but does not export it through RIP. The â€Å"/etc/gateways† file takes precedence over any routing information received through a RIP update. It is also broadcast as fact in RIP updates produced by the host without question, so if a mistake is made in the â€Å"/etc/gateways† file, that mistake will soon permeate the RIP space and may bring the network to its knees. One of the problems with â€Å"routed† is that you have very little control over what gets broadcast and what doesn't.Many times in larger networks where various parts of the network are under different administr ative controls, you would like to pass on through RIP only nets which you receive from RIP and you know are reasonable. This prevents people from adding IP addresses to the network which may be illegal and you being responsible for passing them on to the Internet. This -12type of reasonability checks are not available with â€Å"routed† and leave it usable, but inadequate for large networks. 12 Hello (RFC-891) Hello is a routing protocol which was designed and implemented in a experimental software router called a â€Å"Fuzzball† hich runs on a PDP-11. It does not have wide usage, but is the routing protocol currently used on the NSFnet backbone. The data transferred between nodes is similar to RIP (a list of networks and their metrics). The metric, however, is milliseconds of delay. This allows Hello to be used over nets of various link speeds and performs better in congestive situations. One of the most interesting side effects of Hello based networks is their great timekeeping ability. If you consider the problem of measuring delay on a link for the metric, you find that it is not an easy thing toGet any book for free on: www. Abika. com The Hitchhikers Guide to the Internet do. You cannot measure round trip time since the return link may be more congested, of a different speed, or even not there. It is not really feasible for each node on the network to have a builtin WWV (nationwide radio time standard) receiver. So, you must design an algorithm to pass around time between nodes over the network links where the delay in transmission can only be approximated. Hello routers do this and in a nationwide network maintain synchronized time within milliseconds. 13Exterior Gateway Protocol (EGP RFC-904) EGP is not strictly a routing protocol, it is a reachability protocol. It tells only if nets can be reached through a particular gateway, not how good the connection is. It is the standard by which gateways to local nets inform the ARPAnet of the net s they can reach. There is a metric passed around by EGP but its usage is not standardized formally. Its typical value is value is 1 to 8 which are arbitrary goodness of link values understood by the internal DDN gateways. The smaller the value the better and a value of 8 being unreachable.A quirk of the protocol prevents distinguishing between 1 and 2, 3 and 4†¦ , so the usablity of this as a metric is as three values and unreachable. Within NSFnet the values used are 1, 3, and unreachable. Many routers talk EGP so they can be used for ARPAnet gateways. -13Gated So we have regional and campus networks talking RIP among themselves, the NSFnet backbone talking Hello, and the DDN speaking EGP. How do they interoperate? In the beginning there was static routing, assembled into the Fuzzball software configured for each site.The problem with doing static routing in the middle of the network is that it is broadcast to the Internet whether it is usable or not. Therefore, if a net beco mes unreachable and you try to get there, dynamic routing will immediately issue a net unreachable to you. Under static routing the routers would think the net could be reached and would continue trying until the application gave up (in 2 or more minutes). Mark Fedor of Cornell ([email  protected] tn. cornell. edu) attempted to solve these problems with a replacement for â€Å"routed† called â€Å"gated†. â€Å"Gated† talks RIP to RIP speaking hosts, EGP to EGP speakers, and Hello to Hello'ers.These speakers frequently all live on one Ethernet, but luckily (or unluckily) cannot understand each others ruminations. In addition, under configuration file control it can filter the conversion. For example, one can produce a Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet configuration saying announce RIP nets via Hello only if they are specified in a list and are reachable by way of a RIP broadcast as well. This means that if a rogue network appears in your local site's RIP space, it won't be passed through to the Hello side of the world.There are also configuration options to do static routing and name trusted gateways. This may sound like the greatest thing since sliced bread, but there is a catch called metric conversion. You have RIP measuring in hops, Hello measuring in milliseconds, and EGP using arbitrary small numbers. The big questions is how many hops to a millisecond, how many milliseconds in the EGP number 3†¦. Also, remember that infinity (unreachability) is 16 to RIP, 30000 or so to Hello, and 8 to the DDN with EGP. Getting all these metrics to work well together is no small feat.If done incorrectly and you translate an RIP of 16 into an EGP of 6, everyone in the ARPAnet will still think your gateway can reach the unreachable and will send every packet in the world your way. For these reasons, Mark requests that you consult closely with him when configuring and using â€Å"gated†. -14â € ³Names† All routing across the network is done by means of the IP address associated with a packet. Since humans find it difficult to remember addresses like 128. 174. 5. 50, a symbolic name register was set up at the NIC where people would say â€Å"I would like my host to be named ‘uiucuxc'†.Machines connected to the Internet across the nation would connect to the NIC in the middle of the night, check modification dates on the hosts file, and if modified move it to their local machine. With the advent of workstations and micros, changes to the host file would have to be made nightly. It would also be very labor intensive and consume a lot of network bandwidth. RFC-882 and a number of others describe domain name service, a distributed data base system for mapping names into addresses. We must look a little more closely into what's in a name. First, note that an address specifies a particular connection on a specific network.If the machine moves, the address c hanges. Second, a machine can have one or more names and one or more network addresses (connections) to different networks. Names point to a something which does useful work (i. e. the machine) and IP addresses point to an interface on that provider. A name is a purely symbolic representation of a list of addresses on the network. If a machine moves to a different network, the addresses will change but the name could remain the same. Domain names are tree structured names with the root of the tree at the right. For example: 14 Get any book for free on: www. Abika. om The Hitchhikers Guide to the Internet 15 uxc. cso. uiuc. edu is a machine called ‘uxc' (purely arbitrary), within the subdomains method of allocation of the U of I) and ‘uiuc' (the University of Illinois at Urbana), registered with ‘edu' (the set of educational institutions). A simplified model of how a name is resolved is that on the user's machine there is a resolver. The resolver knows how to contac t across the network a root name server. Root servers are the base of the tree structured data retrieval system. They know who is responsible for handling first level domains (e. g. ‘edu').What root servers to use is an installation parameter. From the root server the resolver finds out who provides ‘edu' service. It contacts the ‘edu' name server which supplies it with a list of addresses of servers for the subdomains (like ‘uiuc'). This action is repeated with the subdomain servers until the final subdomain returns a list of addresses of interfaces on the host in question. The user's machine then has its choice of which of these addresses to use for communication. -15A group may apply for its own domain name (like ‘uiuc' above). This is done in a manner similar to the IP address allocation.The only requirements are that the requestor have two machines reachable from the Internet, which will act as name servers for that domain. Those servers could also act as servers for subdomains or other servers could be designated as such. Note that the servers need not be located in any particular place, as long as they are reachable for name resolution. (U of I could ask Michigan State to act on its behalf and that would be fine). The biggest problem is that someone must do maintenance on the database. If the machine is not convenient, that might not be done in a timely fashion.The other thing to note is that once the domain is allocated to an administrative entity, that entity can freely allocate subdomains using what ever manner it sees fit. The Berkeley Internet Name Domain (BIND) Server implements the Internet name server for UNIX systems. The name server is a distributed data base system that allows clients to name resources and to share that information with other network hosts. BIND is integrated with 4. 3BSD and is used to lookup and store host names, addresses, mail agents, host information, and more. It replaces the â€Å"/etc/ho sts† file for host name lookup.BIND is still an evolving program. To keep up with reports on operational problems, future design decisions, etc, join the BIND mailing list by sending a request to â€Å"[email  protected] Berkeley. EDU†. BIND can also be obtained via anonymous FTP from ucbarpa. berkley. edu. There are several advantages in using BIND. One of the most important is that it frees a host from relying on â€Å"/etc/hosts† Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet being up to date and complete. Within the . uiuc. edu domain, only a few hosts are included in the host table distributed by SRI.The remainder are listed locally within the BIND tables on uxc. cso. uiuc. edu (the server machine for most of the . uiuc. edu domain). All are equally reachable from any other Internet host running BIND. BIND can also provide mail forwarding information for interior hosts not directly reachable from the Internet. These hosts c an either be on non-advertised networks, or not connected to a network at all, as in the case of UUCP-reachable hosts. More information on BIND is available in the â€Å"Name Server Operations Guide for BIND† in â€Å"UNIX System Manager's Manual†, 4. 3BSD release.There are a few special domains on the network, like SRINIC. ARPA. The ‘arpa' domain is historical, referring to hosts registered in the old hosts database at the NIC. There are others of the form NNSC. NSF. NET. These special domains are used sparingly and require ample justification. They refer to servers under the administrative control of -16the network rather than any single organization. This allows for the actual server to be moved around the net while the user interface to that machine remains constant. That is, should BBN relinquish control of the NNSC, the new provider would be pointed to by that name.In actuality, the domain system is a much more general and complex system than has been descr ibed. Resolvers and some servers cache information to allow steps in the resolution to be skipped. Information provided by the servers can be arbitrary, not merely IP addresses. This allows the system to be used both by non-IP networks and for mail, where it may be necessary to give information on intermediate mail bridges. 16 What's wrong with Berkeley Unix University of California at Berkeley has been funded by DARPA to modify the Unix system in a number of ways.Included in these modifications is support for the Internet protocols. In earlier versions (e. g. BSD 4. 2) there was good support for the basic Internet protocols (TCP, IP, SMTP, ARP) which allowed it to perform nicely on IP ethernets and smaller Internets. There were deficiencies, however, when it was connected to complicated networks. Most of these problems have been resolved under the newest release (BSD 4. 3). Since it is the springboard from which many vendors have launched Unix implementations (either by porting the existing code or by using it as a model), many implementations (e. g.Ultrix) are still based on BSD 4. 2. Therefore, many implementations still exist with the BSD 4. 2 problems. As time goes on, when BSD 4. 3 trickles through Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet vendors as new release, many of the problems will be resolved. Following is a list of some problem scenarios and their handling under each of these releases. ICMP redirects Under the Internet model, all a system needs to know to get anywhere in the Internet is its own address, the address of where it wants to go, and how to reach a gateway which knows about the Internet.It doesn't have to be the best gateway. If the system is on a network with multiple gateways, and a host sends a packet for delivery to a gateway which feels another directly connected gateway is more appropriate, the gateway sends the sender a message. This message is an ICMP redirect, which politely says â€Å"I' ll deliver this message for you, but you really ought to use that gateway over there to reach this host†. BSD 4. 2 ignores these messages. This creates more stress on the gateways and the local network, since for every packet -17sent, the gateway sends a packet to the originator.BSD 4. 3 uses the redirect to update its routing tables, will use the route until it times out, then revert to the use of the route it thinks is should use. The whole process then repeats, but it is far better than one per packet. Trailers An application (like FTP) sends a string of octets to TCP which breaks it into chunks, and adds a TCP header. TCP then sends blocks of data to IP which adds its own headers and ships the packets over the network. All this prepending of the data with headers causes memory moves in both the sending and the receiving machines.Someone got the bright idea that if packets were long and they stuck the headers on the end (they became trailers), the receiving machine could pu t the packet on the beginning of a page boundary and if the trailer was OK merely delete it and transfer control of the page with no memory moves involved. The problem is that trailers were never standardized and most gateways don't know to look for the routing information at the end of the block. When trailers are used, the machine typically works fine on the local network (no gateways involved) and for short blocks through gateways (on which trailers aren't used).So TELNET and FTP's of very short files work just fine and FTP's of long files seem to hang. On BSD 4. 2 trailers are a boot option and one should make sure they are off when using the Internet. BSD 4. 3 negotiates trailers, so it uses them on its local net and doesn't use them when going across the network. 17 Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet Retransmissions TCP fires off blocks to its partner at the far end of the connection. If it doesn't receive an acknowledgement in a re asonable amount of time it retransmits the blocks.The determination of what is reasonable is done by TCP's retransmission algorithm. There is no correct algorithm but some are better than others, where better is measured by the number of retransmissions done unnecessarily. BSD 4. 2 had a retransmission algorithm which retransmitted quickly and often. This is exactly what you would want if you had a bunch of machines on an ethernet (a low delay network of large bandwidth). If you have a network of relatively longer delay and scarce bandwidth (e. g. 56kb lines), it tends to retransmit too aggressively.Therefore, it makes the networks and gateways pass more traffic than is really necessary for a given conversation. Retransmission algorithms do adapt to the delay of the network -18after a few packets, but 4. 2's adapts slowly in delay situations. BSD 4. 3 does a lot better and tries to do the best for both worlds. It fires off a few retransmissions really quickly assuming it is on a low delay network, and then backs off very quickly. It also allows the delay to be about 4 minutes before it gives up and declares the connection broken. -19Appendix A References to Remedial Information 18Quaterman and Hoskins, â€Å"Notable Computer Networks†, Communications of the ACM, Vol 29, #10, pp. 932-971 (October, 1986). Tannenbaum, Andrew S. , Computer Networks, Prentice Hall, 1981. Hedrick, Chuck, Introduction to the Internet Protocols, Anonymous FTP from topaz. rutgers. edu, directory pub/tcp-ip-docs, file tcp-ip-intro. doc. -20Appendix B List of Major RFCs RFC-768 RFC-791 RFC-792 RFC-793 RFC-821 User Datagram Protocol (UDP) Internet Protocol (IP) Internet Control Message Protocol (ICMP) Transmission Control Protocol (TCP) Simple Mail Transfer Protocol (SMTP) Get any book for free on: www. Abika. com The Hitchhikers Guide to the InternetRFC-822 RFC-854 RFC-917 * RFC-919 * RFC-922 * Subnets RFC-940 * RFC-947 * RFC-950 * RFC-959 RFC-966 * Protocol RFC-988 * RFC-997 * RF C-1010 * RFC-1011 * Standard for the Format of ARPA Internet Text Messages Telnet Protocol Internet Subnets Broadcasting Internet Datagrams Broadcasting Internet Datagrams in the Presence of Toward an Internet Standard Scheme for Subnetting Multi-network Broadcasting within the Internet Internet Standard Subnetting Procedure File Transfer Protocol (FTP) Host Groups: A Multicast Extension to the Internet Host Extensions for IP Multicasting Internet Numbers Assigned Numbers Official ARPA-Internet Protocols 9 RFC's marked with the asterisk (*) are not included in the 1985 DDN Protocol Handbook. Note: This list is a portion of a list of RFC's by topic retrieved from the NIC under NETINFO:RFC-SETS. TXT (anonymous FTP of course). The following list is not necessary for connection to the Internet, but is useful in understanding the domain system, mail system, and gateways: RFC-882 RFC-883 RFC-973 RFC-974 RFC-1009 Domain Names – Concepts and Facilities Domain Names – Implement ation Domain System Changes andObservations Mail Routing and the Domain System Requirements for Internet Gateways -21Appendix C Contact Points for Network Information Network Information Center (NIC) DDN Network Information Center SRI International, Room EJ291 333 Ravenswood Avenue Menlo Park, CA 94025 (800) 235-3155 or (415) 859-3695 [email  protected] ARPA NSF Network Service Center (NNSC) NNSC BBN Laboratories Inc. 10 Moulton St. Cambridge, MA 02238 (617) 497-3400 Get any book for free on: www. Abika. com The Hitchhikers Guide to the Internet[email  protected] NSF. NET -22Glossary core gateway The innermost gateways of the ARPAnet. These gateways have a total picture of the reachability to all networks known to the ARPAnet with EGP. They then redistribute reachability information to all those gateways speaking EGP. It is from them your EGP agent (there is one acting for you somewhere if you can reach the ARPAnet) finds out it can reach all the nets on the ARPAnet. Which is th en passed to you via Hello, gated, RIP†¦. ount to infinity The symptom of a routing problem where routing information is passed in a circular manner through multiple gateways. Each gateway increments the metric appropriately and passes it on. As the metric is passed around the loop, it increments to ever increasing values til it reaches the maximum for the routing protocol being used, which typically denotes a link outage. hold down When a router discovers a path in the network has gone down announcing that that path is down for a minimum amount of time (usually at least two minutes).This allows for the propagation of the routing information across the network and prevents the formation of routing loops. split horizon When a router (or group of routers working in consort) accept routing information from multiple external networks, but do not pass on information learned from one external network to any others. This is an attempt to prevent bogus routes to a network from being pr opagated because of gossip or counting to infinity. -23- 20 Get any book for free on: www. Abika. com