Computer Science for IGCSE & O level - Data Representation (Section 1 - No. 18)
What impact does data compression have on the quality of audio or video files?
It always improves the quality.
It always decreases the quality.
It can reduce quality depending on the compression method and level.
It does not affect the quality.
הֶסבֵּר
Some compression methods involve trade-offs with quality.