COMPUTER SCIENCE AND ENGINEERING
SYSTEM SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Making a file bigger.
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Keeping files the same size.
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Making a file smaller.
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None of the above
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Detailed explanation-1: -Lossless compression “packs” data into a smaller file size by using a kind of internal shorthand to signify redundant data. If an original file is 1.5 MB, for example, lossless compression can reduce it to about half that size, depending on the type of file being compressed.
Detailed explanation-2: -Compression methods like ZIP and RAR scan a file from top to bottom in order to recognize similar or repetitive patterns. Duplicates are replaced with a unique identifier much smaller than the original word, so the overall size of the file is reduced.
Detailed explanation-3: -There are two methods of compression – lossy and lossless. Lossy reduces file size by permanently removing some of the original data. Lossless reduces file size by removing unnecessary metadata.
Detailed explanation-4: -A compressed zip file is an archive file format featuring lossless compression. This format means that your files and folders will compress, get smaller in data size, but not lose anything in terms of quality or data. Your original files will always remain intact.