ITM 301 Study Guide - Final Guide: Star Network, Transport Layer, Session Layer

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Document Summary

Model that is used to describe network communication is called the. This model divides network communications into seven layers: Physical, data link, network, transport, session, presentation and. While performing those services, the protocols also interact with protocols in the layers directly above and below. Protocols are rules by which computers communicate; it is simply a set of instructions written by a programmer to perform a function or group of functions. The osi model is a representation of what happens between two nodes communicating on a network. Osi model is discussed from highest to lowest, beginning with. Application layer where the flow of information is initiated. Provides interface between software applications and a network for interpreting applications requests and requirements. Does not include software programs such as microsoft word or firefox, instead it facilitates communication between programs and lower-layer network services.