Operating System Mcqs

Page No. 43

When will Local playback be used?


athe multimedia data are delivered from a local file system

✓


ba computer next to you is playing something

✖


ca multimedia file is being played on a system in the local network

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dnone of the mentioned

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The characteristic of the eye to retain the image for a short time after it has been presented is known as ___________


apersistence of vision

✓


blearning power

✖


cmemory mapped input

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dnone of the mentioned

✖


View Answer persistence of vision

The faster the frames are displayed, ___________


athe rougher the video appears

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bthe smoother the video appears

✓


cit gets blurry

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dnone of the mentioned

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Video is represented as a series of images formally known as ___________


apics

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bshots

✖


cframes

✓


dsnaps

✖


View Answer frames

The major difference between a multimedia file and a regular file is ___________


athe size

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bthe attributes

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cthe ownership

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dthe rate at which the file must be accessed

✓



Lossy techniques provide ___________ when compared to lossless techniques.


alower compression ratios

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bmuch higher compression ratios

✓


csimilar compression ratios

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dnone of the mentioned

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Lossy and lossless are classifications of ___________


amultimedia storage systems

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bfiles

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ccompression algorithms

✓


dall of the mentioned

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Compression ratio is the ratio of ___________


athe original file size to the size of the compressed file

✓


bthe number of pixels in a frame of the original size to those in a frame of the compressed file

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ccompressed file size to the original file size

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dnone of the mentioned

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What will happen once a file is compressed?


ait has a better quality

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bit takes up less space for storage

✓


cit cannot be delivered to the client more quickly

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dnone of the mentioned

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For QOS to be implemented properly ___________


afile systems must be efficient to meet the rate requirements of continuous media

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bnetwork protocols must support bandwidth requirements while minimizing delay and jitter

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call of the mentioned

✓


dnone of the mentioned

✖


View Answer all of the mentioned

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