1.DNS - Domain Name System - translates network address (such as IP addresses) into terms understood by humans (such as URLs)
2.DHCP - Dynamic Host Configuration Protocol - can automatically assign Internet addresses to computers and users
3.FTP - File Transfer Protocol - a protocol that is used to transfer and manipulate files on the Internet
4.HTTP - HyperText Transfer Protocol - An Internet-based protocol for sending and receiving webpages
5.IMAP - Internet Message Access Protocol - A protocol for e-mail messages on the Internet
6.IRC - Internet Relay Chat - a protocol used for Internet chat and other communications
7.POP3 - Post Office protocol Version 3 - a protocol used by e-mail clients to retrieve messages from remote servers
8.SMTP - Simple Mail Transfer Protocol - A protocol for e-mail messages on the Internet