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

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

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Operating System (OS)
A public key encryption system

allows anyone to decode the transmission
allows only the correct receiver to decode the data
allows only the correct sender to decode the data
does not encode the data before transmitting it
None of these

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Operating System (OS)
Feed back queue

require manual intervention to implement properly
dispatch tasks according to execution characteristics
None of these
are used to favor real-time tasks
are very easy to implement

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