Robust ProgramsKey Facts

Memory Trick: RPTFL-C

Part of Input Validation — GCSE Computer Science

This key facts covers Memory Trick: RPTFL-C within Input Validation for GCSE Computer Science. Revise Input Validation in Robust Programs for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. 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: RPTFL-C

"Repeat For Less Chaos":

Range (min-max)
Presence (not empty)
Type (correct data type)
Format (pattern match)
Length (character count)
Check digit (calculated)

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. 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

Memory Trick: RPTFL-C

Memory Trick: RPTFL-C

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Practice Questions for Input Validation

Quick Recall Flashcards

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