Datalink layer essays

Datalink layer essays 2.0 PURPOSE Networking, are becoming essential and common in computer communication in small business, big companies and even home network. Networking is two or more computers linked together using communication medium and run by hardware and software components. The data communication is broken down into several tasks, where one is built over the other. These tasks are handled by entity which interacts with adjacent entity, for example the lower entity support the upper entity. These entities are listed below: 1. Application layer generates data to be transmitted 2. Presentation layer accepts messages generated by the application layer. 3. Session layer to set up dialogue between 1 applications 4. Transport layer ensures all messages are delivered correctly 5. Network layer responsible for collecting and routing the data 6. Data Link layer prepare messages for physical transporting 7. Physical layer transmitting data over the communication medium The seven layer of entity is called open systems interconnection (OSI) model. The OSI model allows communication between different types of computer systems. This assignment focuses on the 2nd layer of the OSI model, how it interacts with adjacent layers, purpose of the layerfunctionality of the layer, protocols and hardware. 2.0 Purpose According Forouzan 2003 data links layer hold a vital role as a second layer in the open standard interconnect (OSI) model. It transmitted information from layer 3 and received data from layer 1.It primary function is to pass a data message to another network or node. Data Link layer work as a filter that check and label wether the data can be send or receive from the next layer. The data link layer also must ensure that the incoming data arrive exactly like it was transmitted by the sender. If the data is corr...

Analysis of the French & Indian War essays

Analysis of the French & Indian War essays The ostensible reason of rivalry caused the French Both England and France shared an uncertain, dangerous border in Quebec and Montreal and their Indian allies; this was the spark to ignite the war. Massachusetts soldiers captured French fortresses in Louisbourg, Nova Scotia. From 1754-176l, British In 1747, Virginians formed the Ohio Company. The Company obtained a grant from the king requesting 200,000 acres of forests aside to the Monongahela, Allegheny, and Ohio Rivers. Virginians were interested in this land because of the profits from the resale of land. The French had already settled in this territory. The British were interested in blocking advances of French as well. So, Virginia Governor, Robert Dinwiddie, sent George Washington to warn French that they were on Virginia Land. In the spring of 1754, a small military British force with George Washington went searching for nine-hundred French troops; Washington recruited the Indian support of two dozen Mingos. This was the opening battle of what came to be called the French The French had no intention of departing ...

Ethics Essay Example | Topics and Well Written Essays - 500 words - 44

Ethics - Essay Example The objective of this paper is therefore, to identify examples of dubious activities which are involved in this movie. The first ambiguous activities in the movie, is the way most of the employees who work for the brokerage company becomes millionaires very fast. In real life situations, it takes a while for someone to become a millionaire. For example, in one of the scenes where Snarls Jin tells new recruits that the company does not hire brokers, but they train millionaires. This does not make sense because first of all, this is a brokerage firm, but one of the senior most managers tells its employees that they do not hire brokers, but train them to become millionaires. In addition its common knowledge that, every manager will always try to show new recruits, the company’s laid down rules. Therefore, the activities that the company; is involved with is ethically questionable. The moral philosophy by which the parties seemed to have relied to justify their actions is mala prohibita. This moral philosophy, describes the acts which are not morally wrong, but however, the law prohibits them (Mara and Roberts 108). The parties in the movie relied upon this philosophy to justify their actions by getting involved in dubious stock exchange in order to get rich quickly. This is because when they are caught, the law enforcers will not be able to find any evidence against them, unless they do a much thorough investigation. In addition to that, the constitution is also not very clear on what penalties someone found committing mala prohibita should be given (Mara and Roberts 109). The two alternative philosophies which could have led the parties to different results are mala in se and misdemeanor. Mala in se can be defined as those acts which are immoral and very wrong for killing someone. Misdemeanor on the other hand can be said to be those crimes which are not very serious and therefore attract less penalties (Mara and Roberts 110). In case the