Question

What is protocol ?

Hint:

A protocol is like the rules of grammar and etiquette for a conversation. Without it, devices couldn't have a meaningful exchange of information, just like two people speaking different languages without a translator.

Answer 1

In computing, a protocol is a set of rules and conventions that governs how data is exchanged between two or more communicating devices. It defines the syntax, semantics, and synchronization of communication. Essentially, a protocol is the "language" that devices use to talk to each other. It ensures that the sending device and receiving device understand each other. Examples include:

HTTP (Hypertext Transfer Protocol): for viewing web pages.
TCP/IP (Transmission Control Protocol/Internet Protocol): for routing data across the internet.
SMTP (Simple Mail Transfer Protocol): for sending emails.