MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is compression? (1-4)
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To convert one file to another
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To reduce the size of data to save space
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To minimize the time taken for a file to be downloaded
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To compress something by pressing it very hard
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Explanation:
Detailed explanation-1: -What is the overall best compression format? It depends on user’s need, with compression ratio being only one factor of the equation. ZPAQ and ARC are the best compressors, but 7Z and RAR formats has a clear advantage in terms of decompression speed, faster than for any other tested format.
Detailed explanation-2: -File compression is the act of reducing the size of a file while preserving the original data. When you execute file expression, the compressed files often take up 50% to 90% less disk space than the original files. So, compressing a file will retrieve the space on a storage drive.
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