BTEC Level 3 Computing AAQ Unit 2 | Computer Network Security and Encryption | 45 Slides

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BTEC Level 3 Computing AAQ Unit 2 | Computer Network Security and Encryption | 45 Slides

Description

A comprehensive 45-slide PowerPoint for Pearson BTEC Level 3 National Computing AAQ – Unit 2: Computer Network Security and Encryption.

Designed for post-16 teaching and preparation for the externally assessed 90-mark, 2-hour-15-minute examination.

Covers all four specification content areas.

A – Computer Networks

• Network scales, types and topologies
• Client-server and peer-to-peer networks
• Network devices and connection media
• IoT security considerations
• Memory, storage and network operating systems

B – Network Security

• Cyber threats and attack methods
• Malware, phishing and SQL injection
• Man-in-the-middle attacks
• Firewalls, IDS, IPS and penetration testing
• CIA triad and security policies
• UK GDPR, Data Protection Act and Computer Misuse Act

C – Encryption

• Data packets, addressing and protocols
• Symmetric and asymmetric encryption
• Classical ciphers and pseudocode
• AES and RSA worked examples
• Digital signatures, certificates and PKI
• Hashing and HTTPS

D – Evaluating Security Solutions

• TLS, VPNs and IPsec
• Encryption at rest and key management
• Security, cost, performance and usability
• Comparing solutions across network contexts

What’s included:

• 45 PowerPoint slides
• Coverage of Content Areas A–D
• Network and encryption diagrams
• Two fictional organisation case studies
• Three model exam responses
• 9-mark evaluation practice
• Command-word guidance
• Knowledge checks and confidence tracker

Ideal for BTEC Level 3 Computing AAQ, sixth forms, colleges and independent examination revision.

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Copyright

© 2026 Coffee Owed. All rights reserved.

Independent resource supporting Pearson BTEC Level 3 National Computing AAQ Unit 2. Not produced, approved or endorsed by Pearson.

Qualification names identify curriculum relevance only. Original explanations, diagrams and slide designs remain the creator’s intellectual property. Third-party materials retain their respective rights.

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