Operating System (OS)
The primary job of the operating system of a computer is to

None of these
provide utilities
be user friendly
manage resources
command resources

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Operating System (OS)
What is the method of handling deadlocks?

All of these
Use a protocol to ensure that the system will never enter a deadlock state
Pretend that deadlocks never occur in the system
Allow the system to enter the deadlock state and then recover

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Operating System (OS)
A critical region is

a program segment that has not been proved bug-free
a program segment that often causes unexpected system crashes
a program segment where shared resources are accessed
one which is enclosed by a pair of P and V operations on semaphores
none is the above

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