IGNOU PHE 16 2018 - Explain the layers of TCP/IP reference model. Compare its advantages a

Question

Explain the layers of TCP/IP reference model. Compare its advantages and disadvantages with respect to OSI model.

01 Feb 2018

Answer :

Word Count : 455

TCP/IP is a family of protocols . A few provide "low- level" functions needed for many applications. These include IP, TCP, and UDP. Others are protocols for doing specific tasks, e.g. transferring files between computers, sending mail, or finding out who is logged in on another computer. Initially TCP/IP was used mostly between minicomputers or mainframes. These machines had their own disks, and generally were self contained.

Application Layer

The application layer is provided by the program that uses TCP/IP for communication. An application is a user process cooperating with another process usually on a different host (there is also a benefit to application communication within a single host). Examples of applications include Telnet and the File Transfer Protocol (FTP).

Transport Layer

The transport layer provides the end-to-end data transfer by delivering data from an application to its remote peer. Multiple applications can be supported simultaneously. The most-used transport layer protocol is the Transmission Control Protocol (TCP), which provides connection-oriented reliable data delivery, duplicate

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