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Oak ComputingTest · Computing

Run length encoding

The starter and exit quiz of the lesson “Run length encoding”, from the unit “Data compression” (Year 10 Computing) by Oak National Academy.

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Oak National Academy

12 questions

  1. What is the compression ratio?
  2. What happens when the compression ratio is higher?
  3. What is the term for the file size before compression?
  4. What is the term for the file size after compression?
  5. What does a higher compression ratio require?
  6. What must be considered when selecting a compression algorithm?
  7. What type of compression is run length encoding?
  8. What does run length encoding use to reduce file size?
  9. What is redundancy in a data set?
  10. When does run length encoding work best?
  11. Which of the following is an example of run length encoding?
  12. Does run length encoding always reduce file size?

License: OGL

Run length encoding · Examplary