| Term | Definition |
| Hyper Text Transfer Protocol (HTTP) | Used by web browser and web servers to exchange files |
| HTTPS | is a secure form of HTTP |
| Secure Sockets Layer (SSL) | Secures messages being transmitted on the internet, uses RSA for authentication and encyption. |
| Transport Layer Security (TSL) | ensures that messages being transmitted on the internet are private and tamper proof |
| File Transfer Protocol (FTP) | provides a generic method of transferring files |
| Trivial File Transfer Protocol (TFTP) | similar to FTP. lets you transfer files between a host and an FTP server |
| Secure File Transfer Protocol (SFTP) | Is a file transfer protocol that uses s ecure shell (SSH) |
| Secure Copy | is associated with unix/linux networks |
| Simple Mail Transfer Protocol (SMTP) | is used to route electronic mail through the internetwork |
| Inter Message Access Protocol (IMAP) | is an e mail retival protocol designed to enabel users to access their e-mail from various locations |
| Post Office Protocol 3 (POP3) | is part of theTCP/IP protcol suite and used to retrive e-mail from a remote server to a local client over a TCP/IP connection |
| Dynamic Host Configuration protocol (DHCP) | is a method for automatically assigning address and other configuration parameters to network hosts. |
| Domain Name System (DNS) | is a system that is distributed throughout the internetwork to provide address/name resolution. |
| Network Time Protocol (NTP) | is usde to communicate time synchronization information between systemson a network |
| Network News Transport Protocol (NNTP) | the most widely-used protocol that manages notes posted on usenet newsgroups |
| Light Weight Directory access protocol (LDAP | is used to allow searching and updating of a directory service |
| Simple Network Management protocol (SNMP) | is a protocol designed for managing complex networks |
| Remote Terminal Emulation (Telnet) | allows an attached computer to act as a dumb terminal, with data processing taking place on the TCP/IP host computer |
| Secure Shell (SSH | allows for secure interactive control of remote systems |
| Transmission Protocol (TCP) | provides service that ensure accurate and timely delivery of network communications between two hosts |
| User Datagram Protocol (UDP) | is a host-to-host protocol like TCP, however it does not include mechanisms for ensuring timely delivery |
| Internet Control Message Protocol (ICMP | works closely with IP in providing error and control information, by allowing hosts to exchange packet status information to help move the packets along the internetwork |
| Internet Group Membership Protocol (IGMP) | is a protocol for defining host groups. |