Operating System (OS)
The ability of an operating system to control the activities of multiple program at the same time is called

Multiprocessing
Multitasking
Multioperating
Multipaging

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Operating System (OS)
Trojan-Horse programs

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

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Operating System (OS)
Page stealing

Is taking page frame from other working sets
Is a sign of an efficient system
Is taking layer disk space for page in page out
Should be the turning goal

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