MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Video should use lossy compression because it usually has a large file size which we need to reduce.
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Text should use lossy compression because it always has a large file size which we need to reduce.
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Audio should use lossy compression to save data and transmit quickly.
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None of the above
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Detailed explanation-1: -You’ve been given a new cell phone with a 4 gigabyte data plan. You plan to use your phone for sharing videos, and music. Which of these categories are best compressed using lossy compression? Video should use lossy compression because it usually has a large file size which we need to reduce.
Detailed explanation-2: -Lossy compression is a good choice when the data does not require precision (such as images, sound, or movies, which people may not even notice have been compressed) and when reducing number of bits stored or transmitted is most important.
Detailed explanation-3: -What is the most important quality of lossless compression? The data is transformed to usually make it smaller. It can always be re-constructed back to the original.
Detailed explanation-4: -Things such as text messages can use lossy compression so that you can save space, and it’s not as important.