Oak ComputingTest · Computing

Lossy and lossless compression

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

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Oak National Academy

11 questions

What is the purpose of compression?
Which of the following is commonly compressed?
What does bandwidth measure?
What is latency?
What is one advantage of compressed files?
Put these image formats into size order (smallest to largest):
Why might lossy compression be used instead of lossless compression?
What is one advantage of lossless compression?
Does lossy compression always result in a poor-quality file?
Match each file type with the type of compression it commonly uses.
Which compression method is reversible?

License: OGL