Functions of Network Protocols

Network Protocols are the set of established rules which dictate in formatting, transmitting and receiving the data where computer network devices from servers and routers to endpoints for communicating the differences in the designs or standards. For sending and receiving the successful information, devices on both sides of communication exchange must accept and follow the protocol conventions. So, the support for network protocols can be built into software, hardware or both. The use of network protocols are quite essential in every OSI model especially from the transport layer till the application layer. Below are the functions of network protocols.


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TCP is known as the Transmission Control Protocol where this functions at the transport layer of the OSI Model. The basic task of the TCP is to enable the smooth flow of data and it is automatic recovery as well. This works on the principle of Three-way process and gathers all the required information before establishing a connection. So, this protocol is considered as the most important and reliable protocols.


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FTP is known as the File Transfer Protocol and works at the application layer of the OSI Model. The basic purpose of FTP is to enable the Transfer of files from remote hosts. So, this provides a facility to download and upload files on the remote server which is running on FTP server software.  Also, the FTP is very easy to hack and gain access to the data and misuse it.

TCP/IP Suite

TCP/IP suite is a collection of different protocols and it contains all the protocols which is involved in all four layers of the TCP/IP Model. The Variety of Protocols is provided by the TCP/IP Protocol which makes sure that there is a protocol available to serve on every purpose and perform every task which is required in any of the layers of TCP/IP Model.


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HTTP is known as the Hypertext Transfer Protocol where it allows the data to download from the Internet as well as provides you the privilege to browse web pages on the Internet. So, this comes into a existence on the application layer of the TCP/IP Model. Also, we can access the web page on the world wide web by just entering the URL of that page. But this method is not secure enough because the data is not sent in an encrypted form.

All these protocols will hold a great importance in the process of network. Hope that I have covered all the topics in my article about functions of network protocols. Thanks for reading!