Operating System (OS)
What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?

Windowing
Paging
Partitioning
None of these
Multitasking

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Operating System (OS)
Capacity planning

does not depend on the monitoring tools available
None of these
requires detailed system performance information
is independent of the operating system
is not needed in small installations

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Operating System (OS)
A critical region is

none is the above
a program segment that often causes unexpected system crashes
one which is enclosed by a pair of P and V operations on semaphores
a program segment that has not been proved bug-free
a program segment where shared resources are accessed

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