Network Protocols - GCSE

TCP (Transmission Control Protocol)

Responsible for the transmission of data packets across networks, it divides data into packets and routes them to make sure they go to the right place and then reassembles them when they arrive. If any data is missing it resends it.

IP (Internet Protocol)

Responsible for addressing and routing each packet to ensure it takes the fastest route and goes to the right place.

UDP (User Datagram Protocol)

Alternative to TCP which is faster but less secure and reliable, where data loss is acceptable e.g. Gaming.

HTTP (Hypertext Transfer Protocol)

Allows communication between browser and website for client, letting them receive and send data on a server

HTTPS

Same as HTTP but all data is encrypted to ensure its safe and can’t be understood if intercepted.

FTP (File Transfer Protocol)

Allows the sending and receiving of files between computers.

IMAP (Internet Message Access Protocol)

Retrieves email from the an email server

SMTP (Simple Mail Transfer Protocol)

Used to send, receive and relay emails between sender and receiver.