1) Restores, rebuilds compressed file data in original form. a) Lossless b) Lossy 2) File data removed during compression and not restorable to original form. a) Lossless b) Lossy 3) Used on text and software files, where it is important that when the file is uncompressed, it is a perfect copy of the original file. a) Lossless b) Lossy 4) Used on image, sound and video files where data can be lost without affecting the quality of final uncompressed file. a) Lossless b) Lossy 5) Used for files where data loss is unacceptable or information loss could be a problem e.g. text files. a) Lossless b) Lossy 6) Used when file information loss is acceptable. a) Lossless b) Lossy 7) What compression method is most suitable for a text file? a) Lossless b) Lossy 8) Which of the following would not be suitable for lossy compression? a) Images b) Video c) Music d) Text 9) Compression in general makes it .......................... to send, upload and stream data. a) Quicker b) Slower 10) Lossless compression permanently deletes the data. a) True b) False 11) Lossy compression would be suitable for text files. a) True b) False

File Compression

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