This key facts covers Layer 1: Link Layer (Network Access) 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 6 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 6 of 10
Practice
15 questions
Recall
18 flashcards
Layer 1: Link Layer (Network Access)
What happens here: Physical transmission of data over network hardware.
- Purpose: Physical transmission over network medium (cables, WiFi)
- Protocols: Ethernet, WiFi (802.11)
- MAC addresses: Physical hardware addresses (AA:BB:CC:DD:EE:FF)
- Hardware: NICs, switches, cables, wireless access points
- Data format: Frames (with source and destination MAC addresses)