Computer Science for IGCSE & O level - Data Representation (Section 14 - No. 50)
Which is a characteristic of lossless compression techniques?
They often achieve greater compression ratios than lossy methods.
They are unsuitable for text compression.
They preserve all the original data, enabling perfect reconstruction.
They always create smaller files than lossy compression.
Giải thích
Lossless compression preserves original data to guarantee perfect reconstruction.