Lesson 2.2.3

2.2.3 Additional programming techniques Quiz: OCR Computer Science, Unit 8

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 2.2.3, Additional programming techniques: 20 multiple choice questions for the OCR GCSE Computer Science (J277), Unit 8: Programming fundamentals, written with Revision Ninja.

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The 20 questions

  1. What is string concatenation?

    • Reversing string order
    • Joining strings together
    • Splitting string arrays
    • Counting string length

  2. What is the purpose of string slicing?

    • Merging two strings
    • Deleting string data
    • Encrypting string input
    • Extracting substrings

  3. What is the correct sequence for basic file handling?

    • Process, open, close
    • Close, open, process
    • Open, process, close
    • Open, close, process

  4. What best describes a standard programming array?

    • Fixed-length same-type list
    • Variable-length text file
    • Dynamic multi-type list
    • Unordered key-value store

  5. In a 2D array emulating a database table, what do columns represent?

    • Fields
    • Records
    • Queries
    • Files

  6. What is a programming record structure?

    • Global constant list
    • Single-type fixed array
    • Mixed-type grouped fields
    • Dynamic subroutine stack

  7. Which SQL keyword specifies which columns to return?

    • SELECT
    • INSERT
    • FROM
    • WHERE

  8. What is the key functional difference between a function and a procedure?

    • Procedures cannot be called
    • Functions return values
    • Functions are local only
    • Procedures take no arguments

  9. Which SQL keyword specifies the table being queried?

    • FROM
    • WHERE
    • SELECT
    • QUERY

  10. Which programming method is used to convert an integer value into a string?

    • len()
    • int()
    • float()
    • str()

  11. An array of five scores is indexed from 0. What is the last valid index?

    • 6
    • 4
    • 5
    • 1

  12. What is the main benefit of using subprograms like procedures in programming?

    • Smaller file size
    • Faster compilation
    • More secure code
    • Code reuse

  13. Which programming feature is best used to simulate a standard six-sided dice roll?

    • Random integer
    • File reading
    • Random float
    • String slicing

  14. Which type of variable is only accessible inside the subprogram that declares it?

    • Local variable
    • Global variable
    • Static array
    • Constant value

  15. Which programming method is used to read all lines from a text file until the end?

    • Iteration
    • Selection
    • Concatenation
    • Casting

  16. Can arrays be passed as parameters and returned from subprograms?

    • Only strings
    • No
    • Yes
    • Only constants

  17. A SQL query must return only records where age is greater than 17. Which clause filters the records?

    • INSERT
    • FROM
    • SELECT
    • WHERE

  18. What is the main programming risk associated with using global variables?

    • Unexpected changes
    • Compile errors
    • Local scope
    • Fixed length

  19. Why are arrays described as static data structures in programming?

    • Read only
    • Constant values
    • Global scope
    • Fixed length

  20. Which file handling step must occur before any data can be read or written?

    • Appending file
    • Deleting file
    • Closing file
    • Opening file

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