CS 4504 Chapter Notes - Chapter 1: Hypertext Transfer Protocol, User Datagram Protocol, File Transfer Protocol
6 Sep 2016
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Document Summary
In communications involving computers, protocols must be formally defined and precisely implemented. For each protocol, there must be rules that specify the following: The specifications of a protocol do not dictate how the rules are to be implemented. The classic network architecture is called open system interconnect (osi) architecture. Osi divides complex functionalities of a network into seven layers. All 7 parts must be present in a computer in order for distribute computing to work. The textbook uses a simplified version with only 4 layers. Physical layer provides the functionalities for the transmission of signals representing a stream of data from one computer to another. Internet layer allows packet of data to be addressed to a remote computer and delivered to that computer. The transport layer provides the functionalities for data packets to be delivered to a specific process running on a remote computer.
