This study notes covers Exam Tips within Prevention Methods for GCSE Computer Science. Revise Prevention Methods in Network Security 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 9 of 10 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 9 of 10
Practice
15 questions
Recall
18 flashcards
Exam Tips
- Firewall: Always mention it filters traffic based on RULES and uses criteria like source/destination/port
- Encryption: Emphasize that encrypted data is USELESS without the decryption key - that's why it's effective
- Authentication vs Authorisation: Authentication = WHO you are (login); Authorisation = WHAT you can do (permissions)
- MFA factors: Remember the THREE categories - something you know/have/are (not just "two passwords"!)
- Common question: "Describe how [method] protects against [threat]" - explain the MECHANISM clearly, not just "it protects"
- Defence in depth: Multiple layers of security are better than relying on one method