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3.2 ProgrammingVery High Exam FrequencyOCR

Input Validation

Revise Input Validation in 3.2 Programming for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This is a very high-frequency exam topic, so it is worth revising until the core ideas feel automatic.

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1

The Bouncer at the Door

Introduction2

Types of Validation

Key Facts3

Deep Dive: Validation Examples

Deep Dive4

Memory Trick: RPTFL-C

Key Facts5

Exam Tips

Exam Tips6

Knowledge Organiser: Input Validation

Summary

Sample Flashcards

What is validation?
Checking input data is sensible and follows rules before processing
What is a type check?
Checking data is the correct data type (e.g., integer not text)

Exam 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. Type check
  • B. Range check
  • C. Length check
  • D. Presence check
1 markfoundation

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.

3 marksstandard

15

exam-style questions

8

revision flashcards

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