Operating System (OS)
First-in-First-Out (FIFO) scheduling is

Non Preemptive Scheduling
Fair Share Scheduling
Deadline Scheduling
Preemptive Scheduling

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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.
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
All of these

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Operating System (OS)
All of the following are task performed by the operating system except

Performing housekeeping task like file compression and disk defragmentation
Provides an interface for user to interact with computer
Controlling the access that application program has to the CPU
Managing hardware on the computer

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