What do you understand by Protocol? Name the different types of protocols.

A protocol is a set of rules and procedures which establishes a link to control the data transmission between the two points (the sender and the receiver).

The commonly used protocols are:

1. Hypertext Transfer Protocol (HTTP)
2. File Transfer Protocol (FTP)
3. Internet Protocol (IP)
4. Transmission Control Protocol (TCP)
5. Internet Message Access Protocol (IMAP)
6. Simple Mail Transfer Protocol (SMTP)