Protocol Testing:-

What is Protocol in a software industry?

When computer communicates with each other, there is a common arrangement of rules and conditions that every computer needs to follow. As such, protocols decide how data/information are transmitted between computing devices and over networks.

Protocols are characterized into two categories routed protocols and a routing protocols.

Routed Protocols: Routed protocols can be utilized to send the user information/data starting with one network to another network. It carries user traffic like messages, web-activity, file transfers, e-mails etc. These protocols are IP, IPX, and AppleTalk.

Routing Protocols: Routing protocols are network protocols that decide routes for switches. It is just utilized between switches/routers. For instance RIP, IGRP, EIGRP, and so on.

In basic terms, router is similar to a transport utilized for transportation while directing/routing protocols are signs out and about on the road.

Based on the sort of communication different protocols are utilized.

Types/Sorts of computer protocols:-

* TCP/IP-Transmission Control Protocol/Internet protocol, UDP/ICMP-User Datagram Protocol/Internet Control Message Protocol, POP3/SMTP-Post Office Protocol/Simple Mail Transfer Protocol, HTTP-Hyper Text Transfer Protocol, FTP-File Transfer Protocol

Different sorts of network Protocols (L2 and L3):-

The OSI model has all out 7 layer of system/network communication, in which layer 2 and layer 3 are exceptionally crucial.

Layer 2: It is an data join/link layer. Macintosh address, Ethernet, Token Ring, and Frame Relay are all examples of Data connection/link layer.

Layer 3: It is a network layer that decides the best available way in the network for communication. IP location is an example of layer3.