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

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
to provide for long and short term storage of files with appropriate economic tradeoffs.
None of these

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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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