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Compression: Edexcel GCSE Computer Science questions

Every Edexcel GCSE Computer Science exam question on 2.3.2 Compression, 2022–2025, with its mark scheme and examiner’s report.

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210 questions

  1. Q1(c)(i)

    June 2025 · Paper 1

    2 marks2.3.2 Compression
    The whole paper ↗

  2. Q5(a)

    June 2023 · Paper 1

    2 marks2.3.2 Compression
    The whole paper ↗

  3. Q2(e)

    June 2022 · Paper 1

    2 marks2.3.2 Compression
    The whole paper ↗

  4. Q3(b)

    June 2022 · Paper 1

    1 mark2.3.2 Compression
    The whole paper ↗
All 4 questions on Compression, as a list
  1. June 2025, Paper 1, Q1(c)(i) (2 marks): Explain one reason why lossy compression is used to reduce the size of an audio file. (2)
  2. June 2023, Paper 1, Q5(a) (2 marks): Describe one effect of using lossy compression to reduce the size of a file. (2)
  3. June 2022, Paper 1, Q2(e) (2 marks): Identify two reasons for using data compression. (2) A Reduces data transfer times B Reduces disk fragmentation C Reduces required storage space D Reduces the c
  4. June 2022, Paper 1, Q3(b) (1 mark): After applying compression to a file, the original contents cannot be reconstructed fully. State the type of compression used on the file. (1)

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