O-LevelComputer ScienceData Representation2210/12 · Oct/Nov 2016 · Q84 Marks
8 Identify whether the four statements about file compression are correct by writing TRUE or FALSE in the following table. Statement MIDI files store the actual music notes in a compressed format JPEG files are examples of lossless file compression MP3 files are, on average, 90% smaller than the music files stored on a CD MP4 files are examples of lossy file compression TRUE or FALSE
- Identify whether the four statements about file compression are correct by writing TRUE or FALSE in the following table. Statement MIDI files store the actual music notes in a compressed format JPEG files are examples of lossless file compression MP3 files are, on average, 90% smaller than the music files stored on a CD MP4 files are examples of lossy file compression[4]
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Mark scheme
Marking points from the official mark scheme (Oct/Nov 2016). The mark or mark type is shown in brackets.
- [4] MIDI stores the actual music notes in a compressed format: FALSE
- JPEG files are examples of lossless file compression: FALSE
- MP3 files are, on average, 90% smaller than the music files stored on a CD: TRUE
- MP4 files are examples of lossy file compression: TRUE
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