This key facts covers Layer 2: Internet Layer 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 5 of 10 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 5 of 10
Practice
15 questions
Recall
18 flashcards
Layer 2: Internet Layer
What happens here: Routes data across networks using IP addresses.
- Purpose: Addressing and routing packets across different networks
- Protocols: IP (Internet Protocol - IPv4/IPv6)
- IP addresses: Logical addresses identifying devices (192.168.1.1)
- Routing: Routers determine best path for data to reach destination
- Data format: Packets (with source and destination IP addresses)