Answer Posted / amit gathiya

A Protocol is basically a convention of standard which
controls the connection and the connections and data
transfers associated with it. It governs the syntax,
semantics and synchronization used in computing.

There are a number of protocols used in computing. The most
popular ones being the following:

Telnet (Telnet Remote Protocol)
SSH (Secure Shell Remote Protocol)
IP (Internet Protocol)
UDP (User Datagram Protocol)
TCP (Transmission Control Protocol)
DHCP (Dynamic Host Configuration Protocol)
HTTP (Hypertext Transfer Protocol)
FTP (File Transfer Protocol)
POP3 (Post Office Protocol 3)
SMTP (Simple Mail Transfer Protocol)
IMAP (Internet Message Access Protocol)

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