| A | B |
| Internet Protocol | responsible for IP addressing and performs the routing function |
| Internet Control Message Protocol | the troubleshooting protocol of TCP/IP |
| Internet Group Management Protocol | used for multicasting |
| Address Resolution Protocol | Translates Internet addresses to physical addresses |
| Reverse Address Resolution Protocol | uses a hardware address to request an IP address |
| Transmission Control Protocol | ensures that data is delivered in sequence |
| User datagram Protocol | provides simple datagram form of communication |
| Hypertext transfer Protocol | transports Web pages across the Internet |
| File Transfer Protocol | a system for transfering files between computers on a TCP/IP network |
| Trivial File Transfer Protocol | used for initializing diskless systems |
| Telnet | allows a user to access programs from a remote system |
| Network News Transfer Protocol | allows sites to exchange Usenet news articles, accesses Newsgroups |
| Gopher | menu-based program used to find resources on the Internet |
| Simple Mail Transfer Protocol | the Internet standard for sending e-mail messages |
| Simple network Management Protocol | standardized management scheme for TCP/IP networks |
| Domain Name System | Internet mechanism used to translate host computer names into Internet (IP) addresses |
| BOOTstrap Protocol | provides method for diskless workstations to determine their IP address |
| Dynamic Host Configuration Protocol | designed to assign Internet addresses to nodes on a TCP/IP network during initialization |
| LANs use these | ethernet, token ring and FIDI |
| WANs use these | frame relay, serial lines, and ATM |