Operating System (OS)
The function(s) of file system is (are):

None of these
to provide for long and short term storage of files with appropriate economic tradeoffs.
All of these
to provide security against loss of information due to system failure
to provide complete file naming freedom to the users and to permit controlled sharing of files

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Operating System (OS)
A page fault

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

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