What is Protocol?

PROTOCOL

A standard way of communicating across a network or internet. A protocol like “language” of computer network. A method by which two difference systems can communicate together. 

What are Protocol functions?

• Handshaking 
• Type of error checking
• Data Compression Method
• How to format a message
• How to indicate that it has finished sending / receiving a message
• Termination of the session or connection

Common Protocols

• TCP/IP (Transmission Control Protocol / Internet Protocol)
• HTTP (Hypertext Transfer Protocol)
• FTP (File Transfer Protocol)
• DHCP (Dynamic Host Configuration Protocol)
• TELNET (Telnet Remote Protocol)
• POP3 (Post Office Protocol 3)
• SMTP (Simple Mail Transfer Protocol)
• IMAP (Internet Message Access Protocol)

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