Protocols

Protocols: a set of rules that govern how communications on a network should be formatted and what data they should include 

They ensure that data is sent and received accurately on a network.

Protocols need to include:

• Format of the data
• Sender and recipient address
• Routing information so it knows how to travel through the network

Ethernet: a protocol used in wired LANs

WiFi: Wireless Fidelity 

• Digital communications protocol that sets out how data is transmitted on wireless LANs. 

TCP/IP: Transmission Control Protocol/Internet Protocol

• A collection of protocols that work together.
• Each protocol is a layer and each layer has a particular function

HTTP: …