Computer Science — Networks and Internet

Exam board: AQA  |  Back to subjects

Board-Specific Note

AQA specification; content aligns with the national A-Level syllabus.

Learning Objectives

• Explain network topologies
• Understand protocols
• Describe cybersecurity threats

Key Points

• LAN vs WAN, topology
• TCP/IP, HTTP, DNS
• Malware, phishing, encryption

Lesson Plan (50 minutes)

1. Starter (5 min): Recall prior knowledge of networks and internet with quick questions.
2. Teaching (15 min): Work through each of the learning objectives, explaining principles step by step.
3. Key points review (5 min): Revisit the key points together, confirming understanding.
4. Worked example (10 min): Model the example question: What does HTTP do?. Solution: Transfers web pages over the internet
5. Practice (10 min): Students attempt the practice questions independently; circulate and support.
6. Plenary (5 min): Review answers and address misconceptions.

Homework

• Compare topologies
• Explain the role of DNS
• Name two cyber threats

Assessment

Check practice answers against the model answer; use the built-in practice questions as formative assessment.