Why do we use protocols in networks? Give 3 examples of application layer protocols.

It uses to set of rules to exchange messages with other Internet points at the information packet level

Application layer protocols

• Remote login to hosts: Telnet.
• File transfer: File Transfer Protocol (FTP), Trivial File Transfer Protocol (TFTP)
• Electronic mail transport: Simple Mail Transfer Protocol (SMTP)
• Networking support: Domain Name System (DNS)
• Host initialization: BOOTP.

wait more details from our experts