Lesson T2.3.2

T2.3.2 Designing and developing modular programs Quiz: KS3 Computing, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson T2.3.2, Designing and developing modular programs: 20 multiple choice questions for the KS3 Computing (National Curriculum), Unit 2: Programming, written with Revision Ninja.

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The 20 questions

  1. What does modular design mean in programming?

    • Using multiple languages
    • Splitting programs into parts
    • Removing syntax errors
    • Writing faster algorithms

  2. Why is it beneficial to test software modules individually?

    • Files become smaller
    • Memory usage decreases
    • Faults are found easier
    • Code runs much faster

  3. Which programming construct is typically used to create a reusable code module?

    • Variable
    • Operator
    • Constant
    • Subroutine

  4. What is a major advantage of modular design for a development team?

    • Parallel teamwork
    • Smaller file sizes
    • Automatic debugging
    • Faster processors

  5. What principle advises that a module should hide its inner working details?

    • Iteration
    • Encapsulation
    • Sequence
    • Selection

  6. What defines an interface between two software modules?

    • The programming language
    • The computer screen
    • Shared global variables
    • Agreed inputs and outputs

  7. Why should a programming module be designed to do one job?

    • It slows down processing
    • It requires more code
    • It uses more memory
    • Easier to reuse

  8. How do separate modules usually pass data values between each other?

    • Parameters
    • Comments
    • Flowcharts
    • Keywords

  9. What is the primary purpose of writing unit tests for a single module?

    • Verify correctness
    • Count lines
    • Design graphics
    • Draw diagrams

  10. What is a risk of having no modular structure in large programs?

    • Files cannot be saved
    • Changes break other parts
    • Monitors display errors
    • Code becomes too short

  11. What term describes using the same tested module in different programs?

    • Recursion
    • Redundancy
    • Reusability
    • Refactoring

  12. A module works alone but fails when joined. What is the likely cause?

    • Syntax error
    • Interface mismatch
    • Slow hardware
    • Low memory

  13. Why should software modules be well named and documented?

    • To increase file size
    • Others can understand them
    • To hide secret data
    • To slow down execution

  14. Which is a good way to divide a simple game into modules?

    • Movement and scoring
    • Infinite loops
    • Hardware drivers
    • Random text

  15. What modular approach removes duplicated code blocks placed in five areas?

    • Add comments
    • Use procedures
    • Increase variables
    • Use global scope

  16. What is the main benefit of testing a module with known inputs and expected outputs?

    • Speeding downloads
    • Compressing files
    • Verifying correctness
    • Styling code

  17. What is the best design choice instead of relying heavily on global variables?

    • Add constants
    • Pass parameters
    • Use goto
    • Delete comments

  18. What is the main advantage of drawing a module structure diagram before coding?

    • Compiling faster
    • Generating syntax
    • Spotting design flaws
    • Compressing files

  19. Which term describes a top-down approach that breaks a large problem into smaller parts?

    • Iteration
    • Decomposition
    • Compilation
    • Translation

  20. What is a common way to share a module between programs?

    • Compiling
    • Deleting
    • Formatting
    • Importing

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