Operating System (OS)
Data encryption

is mostly used by public networks
is mostly used by financial networks
None of these
is not necessary, since data cannot be intercepted
cannot be used by private installations

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Operating System (OS)
Virtual Memory

None of these
consists of those addresses that may be generated by a processor during execution of a computation.
allows multiple programs to reside in separate areas of core at the time.
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.

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