Operating System (OS)
Trojan-Horse programs

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

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Operating System (OS)
Semaphores

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

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Operating System (OS)
The function(s) of the Storage Assignment is (are)

None of these
to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
All of these
to assign storage to all variables referenced in the source program.
to assign storage to all temporary locations that are necessary for intermediate results.

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