Operating System (OS)
A page fault

is an error is a specific page
is a reference to a page belonging to another program
None of these
is an access to a page not currently in memory
occurs when a program accesses a page of memory

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Operating System (OS)
Swapping

does not work with overlaying
works best with many small partitions
allows each program in turn to use the memory
None of these
allows many programs to use memory simultaneously

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Operating System (OS)
Trojan-Horse programs

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

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