What Is Protocol | 19 Types and How it Works

Today we will know What is Protocol and its types? When there is a transfer of digital communication data, some rules have been made for that also. Which are called network protocols.

These rules are made to transfer the data within the network systematically and securely. There are many types of protocols and all these protocols have an important role.

What Is Protocol

The protocol is a kind of rule used in digital communication. It is decided by the network protocol, how the data will be transmitted and received on the computer network.

Protocols in computer networks are also known as digital languages. Without it, we cannot communicate with each other in any way on the Internet nor can we transfer any information from one computer to another. Any file or mail sent by us over the Internet works according to this Internet Protocol.

For example, we have also created many traffic rules to manage traffic in an orderly manner, which we follow and our safety remains intact.

Similarly, some protocols are used for orderly and secure data transfer over Internet networks, which we also call network protocols. So overall protocol is a set of rules and guidelines for data communication.

There are many types of protocols in it and their work is also different. Hence they are defined by a different name. They set certain communication standards and provide complete information about many transmission processes. Data flow rate, data type, process properties, and device management with this protocol.

Why is the Protocol Important?

Without the protocol, any devices cannot understand the electronic signals sent by each other across the network. The job of these network protocols is to communicate between all these devices. In addition, several important functions occur, indicating the importance of this protocol.

  • When two electronic devices or network devices are fully connected among themselves. So for it to be able to do the job of data transfer successfully, some rules are made, which we call Network Protocol. By following these protocols, secure data transfer is possible between the devices.
  • It is determined by the protocol, that all programs are written in only one format. If we write it differently, this program will not be able to interact with others.
  • When we send data packets from one network device to another network device, then it reaches the receiver directly, for this only the network protocol provides security and source to reach the destination.
  • When data is sent to an electronic device, how to receive and respond to it. It all depends on the rules made by the protocol.

How to Protocol Works

To explain how to know how Internet Protocol works, let us take the example of network protocol TCP. When we make a request to a webpage on the Internet, through a web browser, we understand a little about which protocols work to bring that webpage to us.

We have already read that all the web pages on the internet are present on a server and when we ask for a webpage from a web browser, it sends its request to the internet server because all the webpages are in Hypertext markup language (HTML).

That’s why the server sends the HTML file of that webpage to the web browser. Now the internet protocol does its work to access that file to the client.

First of all, the HTTP Protocol comes in handy, because without it the transmission of the request sent by the client of any web page is not possible. The second function is of the network protocol TCP, it establishes the connection between the server and the client.

When TCP makes contact between the client and the server, it breaks that HTML file into several smaller packets, which we also call data packets.

Now the next work is done by the Internet Protocol (IP), it tells the TCP protocol the address of the client where the file is to be sent.

As soon as the address of the client is received, TCP sends that HTML file to the destination. After which that file is assembled and gets back to the client in its original form.

Types of Protocol 

There are many types of protocols:-

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