This comparison 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 7 of 10 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 10
Practice
15 questions
Recall
18 flashcards
TCP/IP Four-Layer Model
| Layer | Name | Purpose | Protocols | Data Unit |
|---|---|---|---|---|
| 4 | Application | Network services for applications | HTTP, FTP, SMTP, DNS | Data/Messages |
| 3 | Transport | Reliable delivery, error checking | TCP, UDP | Segments/Datagrams |
| 2 | Internet | Addressing and routing | IP (IPv4/IPv6) | Packets |
| 1 | Link | Physical transmission | Ethernet, WiFi | Frames |