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Network Protocols -2022 Latest

What is network protocol ?

A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. The protocol defines the rules, syntax, semantics and synchronization of communication and possible error recovery methods. Protocols may be implemented by hardware, software, or a combination of both.

Types of Network Protocols and Their Uses


In the world of technology, there are vast numbers of users’ communicating with different devices in different languages. That also includes many ways in which they transmit data along with the different software they implement. So, communicating worldwide will not be possible if there were no fixed ‘standards’ that will govern the way user communicates for data as well as the way our devices treat those data. Here we will be discussing these standard set of rules.

There are various types of protocols that support a major and compassionate role in communicating with different devices across the network. These are:

1.Transmission Control Protocol (TCP)
2.Internet Protocol (IP)
3.User Datagram Protocol (UDP)
4.Post office Protocol (POP)
5.Simple mail transport Protocol (SMTP)
6.File Transfer Protocol (FTP)
7.Hyper Text Transfer Protocol (HTTP)
8.Hyper Text Transfer Protocol Secure (HTTPS)

Let’s discuss each of them briefly:

1.Transmission Control Protocol (TCP):TCP is a popular communication protocol which is used for communicating over a network. It divides any message into series of packets that are sent from source to destination and there it gets reassembled at the destination.

2.Internet Protocol (IP): IP is designed explicitly as addressing protocol. It is mostly used with TCP. The IP addresses in packets help in routing them through different nodes in a network until it reaches the destination system. TCP/IP is the most popular protocol connecting the networks.

3.User Datagram Protocol (UDP): UDP is a substitute communication protocol to Transmission Control Protocol implemented primarily for creating loss-tolerating and low-latency linking between different applications.
4.Post office Protocol (POP): POP3 is designed for receiving incoming E-mails.

5.Simple mail transport Protocol (SMTP): SMTP is designed to send and distribute outgoing E-Mail.

6.File Transfer Protocol (FTP): FTP allows users to transfer files from one machine to another. Types of files may include program files, multimedia files, text files, and documents, etc.

7.Hyper Text Transfer Protocol (HTTP): HTTP is designed for transferring a hypertext among two or more systems. HTML tags are used for creating links. These links may be in any form like text or images. HTTP is designed on Client-server principles which allow a client system for establishing a connection with the server machine for making a request. The server acknowledges the request initiated by the client and responds accordingly.


8.Hyper Text Transfer Protocol Secure (HTTPS): HTTPS is abbreviated as Hyper Text Transfer Protocol Secure is a standard protocol to secure the communication among two computers one using the browser and other fetching data from web server. HTTP is used for transferring data between the client browser (request) and the web server (response) in the hypertext format, same in case of HTTPS except that the transferring of data is done in an encrypted format. So it can be said that https thwart hackers from interpretation or modification of data throughout the transfer of packets.

9.Telnet: Telnet is a set of rules designed for connecting one system with another. The connecting process here is termed as remote login. The system which requests for connection is the local computer, and the system which accepts the connection is the remote computer.

10.Gopher: Gopher is a collection of rules implemented for searching, retrieving as well as displaying documents from isolated sites. Gopher also works on the client/server principle.

Some Other Protocols


ARP (Address Resolution Protocol)
DHCP (Dynamic Host Configuration Protocol)
IMAP4 (Internet Message Access Protocol)
SIP (Session Initiation Protocol)
RTP (Real-Time Transport Protocol)
RLP (Resource Location Protocol)

RAP (Route Access Protocol)
L2TP (Layer Two Tunnelling Protocol)
PPTP (Point To Point Tunnelling Protocol)
SNMP (Simple Network Management Protocol)
TFTP (Trivial File Transfer Protocol)

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