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Computer Operating System

301.

Filename extensions help identify certain files. What filename extension identifies executable files?

Answer: C

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Answer: D

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303.

To avoid the race condition, the number of processes that may be simultaneously inside their critical section is

Answer: B

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304.

Which of the following scheduling objectives should be applied to the following: the system should admit jobs to create a mix that will keep most devices busy

Answer: B

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305.

When did IBM release the first version of disk operating system DOS version 1.0?

Answer: A

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306.

A system program that combines the separately compiled modules of a program into a form suitable for execution

Answer: B

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Answer: D

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Answer: D

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Answer: D

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310.

Which command will prevent subsequent changes to the file CBT.EXE?

Answer: B

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