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The four TCP/IP layers

The four TCP/IP layers

TCP/IP stack showing an HTTP request wrapped into TCP, IP and Ethernet data units with ports, IP addresses and MAC addresses labelled

TCP/IP, short for Transmission Control Protocol/Internet Protocol, is the four-layer model commonly used to describe how a client application talks to a server across networks. The layers are application, transport, network and link, and each one has a specific job.

TCP/IP stack and application layer protocols Lesson

  1. A Level
  2. /Computer Science
  3. /TCP/IP stack and application layer protocols

Step-by-step lessons on AQA A Level Computer Science TCP/IP stack and application layer protocols. Each one builds up to exam-style questions.

Lessons