Operating System (OS)
Virtual Memory

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.
None of these
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.
is a method of allocating processor time.

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Operating System (OS)
File record length

Should always be variable
should always be fixed
should be chosen to match the data characteristics
depends upon the size of the file
None of these

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