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

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

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Operating System (OS)
Thrashing can be avoided if

All of these
None of these
the pages, belonging to the working set of the programs, are in main memory
the speed of I/O processor is increased
the speed of CPU is increased

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