Operating System (OS)
Which of the following is not essential to shut down your computer?

Switch off monitor
Cut off the power supply
Save all opened files
Close all running applications

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

to provide complete file naming freedom to the users and to permit controlled sharing of files
None of these
All of these
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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