Operating System (OS)
Which of the following is not true about documentation?

Documentation gives better understanding of the problem
All of these
None of these
Documentation increases the maintenance time and cost
Documentation, of a system, should be as clear and direct as possible

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Operating System (OS)
Page stealing

Is a sign of an efficient system
Is taking layer disk space for page in page out
Should be the turning goal
Is taking page frame from other working sets

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Operating System (OS)
Semaphores

are used to do I/O
synchronize critical resources to prevent deadlock
are used for memory management
None of these
synchronize critical resources to prevent contention

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