Information Technology Unit 1 - Protocols

Used to transfer emails between mail servers. It is also used to transfer email from the client software to the outgoing mail server.

Used to retrieve emails from the mail server. It allows us to download messages to our client software for offline reading.

Used to retrieve emails from the mail server. Rather than downloading the messages, IMAP syncs them with the mail server.

Used to allow web servers to transfer files over the internet. It is how we access the World Wide Web.

The secure version of the standard HTTP. It uses public key cryptography to encrypt communications between a web browser and server.

Used to transfer files over a network. It is the technology used to upload files to a server as well as to download large files.

Used to ensure that transactions over networks are kept are kept safe. SSL is gradually being phased out and replaced with TLS.

Used to ensure that transactions over networks are kept are kept safe. SSL is gradually being phased out and replaced with TLS.

One of the first successful VOIP protocols and its recommended by the ITU (International Telecommunication Union). It defines the rules for communicating audio and video over packet switched networks.

Used to create, control and end VOIP connections.

Designed to transfer audio and video over IP-based networks.

Used to create the packets and reassemble them at the end.

Used to route packets to the intended computer, using the computer's IP address.