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Memory Trick: VSCAM

Part of Defensive Design — GCSE Computer Science

This key facts covers Memory Trick: VSCAM within Defensive Design for GCSE Computer Science. Revise Defensive Design in Robust Programs for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 4 of 5 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 4 of 5

Practice

15 questions

Recall

8 flashcards

Memory Trick: VSCAM

Defensive design:

  • Validate input
  • Sanitise data
  • Comments for clarity
  • Anticipate misuse
  • Maintainable code

Keep building this topic

Read this section alongside the surrounding pages in Defensive Design. That gives you the full topic sequence instead of a single isolated revision point.

Deep Dive: Maintainable CodeExam TipsBuilding Software ArmourDefensive Design Principles

Practice Questions for Defensive Design

What is the purpose of input validation in a program?

  • A. To check that the user is who they claim to be
  • B. To check that input data meets specified rules before processing
  • C. To encrypt data before it is stored
  • D. To remove duplicate records from a database
1 markfoundation

Describe three different types of validation check, giving an example of each.

3 marksstandard

Quick Recall Flashcards

What is authentication?
Verifying a user's identity before granting access to a system
Why use comments?
To explain code so others can understand and maintain it

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