Monday, February 25, 2013

7 Layer Osi Model

The Application bed represents the level at which applications access communicate services. This class represents the services that directly support applications such as software for file transfers, infobase access, and electronic mail.
The Presentation layer translates information from the Application layer into an intermediary format. This layer also manages credentials issues by providing services such as info encryption, and compresses information so that fewer bits need to be transferred on the electronic network.
The academic term layer allows two applications on different computers to establish, use, and end a session. This layer establishes dialog control between the two computers in a session, regulating which side transmits, plus when and how long it transmits.
The enamour layer handles error recognition and rec overy. It also repackages long messages when needful into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The receiving Transport layer also sends receipt acknowledgments.
The Network layer addresses messages and translates logical addresses and name into physical addresses.

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It also determines the route from the source to the destination computer and manages traffic problems, such as switching, routing, and controlling the congestion of data packets.
The Data Link layer packages raw bits from the Physical layer into frames (logical, structured packets for data). This layer is responsible for transferring frames from 1 computer to another, without errors. afterward sending a frame, it waits for an acknowledgment from the receiving computer.
The Physical layer transmits bits from one computer to another and regulates the transmission of a stream of bits over a physical medium. This layer defines how the cable is attached to the network adapter and what transmission technique is used to send data over the cable.If you want to get a full essay, rig it on our website: Orderessay



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