Operating System (OS)
Trojan-Horse programs

are legitimate programs that allow unauthorized access
usually are immediately discovered
None of these
do not usually work
are hidden programs that do not show up on the system

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Operating System (OS)
Paging

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

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