Operating System (OS)
Capacity planning

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

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Operating System (OS)
Semaphores

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

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Operating System (OS)
Virtual Memory

None of these
is a method of allocating processor time.
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
allows multiple programs to reside in separate areas of core at the time.
consists of those addresses that may be generated by a processor during execution of a computation.

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