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TCP/IP Four-Layer Model

Part of TCP/IP Layers — GCSE Computer Science

This diagram covers TCP/IP Four-Layer Model within TCP/IP Layers for GCSE Computer Science. Revise TCP/IP Layers in Networks for GCSE Computer Science with 15 exam-style questions and 18 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 2 of 10 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 2 of 10

Practice

15 questions

Recall

18 flashcards

TCP/IP Four-Layer Model

TCP/IP four-layer model diagram showing Layer 4 Application (HTTP, SMTP, FTP, DNS) at the top, Layer 3 Transport (TCP reliable delivery, UDP fast), Layer 2 Internet (IP routing and addressing), and Layer 1 Link (Ethernet, WiFi, MAC addresses) at the bottom, with arrows showing data flowing down layers when sending and up when receiving

Keep building this topic

Read this section alongside the surrounding pages in TCP/IP Layers. That gives you the full topic sequence instead of a single isolated revision point.

The Four-Layer Network StackLayer 4: Application LayerLayer 3: Transport LayerLayer 2: Internet Layer

Practice Questions for TCP/IP Layers

How many layers does the TCP/IP model have?

  • A. 3
  • B. 4
  • C. 5
  • D. 7
1 markfoundation

Describe what the Internet layer does in the TCP/IP model.

2 marksstandard

Quick Recall Flashcards

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The Four-Layer Network Stack

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Layer 4: Application Layer