This exam tips covers Exam Tips within Input Validation for GCSE Computer Science. Revise Input Validation in 3.2 Programming for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 5 of 6 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 5 of 6
Practice
15 questions
Recall
8 flashcards
Exam Tips
- Validation ≠ Verification: Validation checks data is sensible; verification checks it's what user intended (e.g., enter twice)
- Doesn't prove accuracy: Data can be valid but wrong (fake name passes validation)
- Combine checks: Often need multiple validation types for one field
Keep building this topic
Read this section alongside the surrounding pages in Input Validation. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Input Validation
A program asks the user to enter a score between 1 and 10. Which validation check should be used to ensure the number is within this range?
A registration form collects a username. The username must: not be blank, contain only letters and numbers, and be between 6 and 20 characters long. Identify three validation checks and explain what each one does for this input.
Quick Recall Flashcards
15 questions on Input Validation — practise free
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