Operating System (OS)
Process is

a program in execution
program in High level language kept on disk
None of these
a job in secondary memory
contents of main memory

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Operating System (OS)
A critical region is

one which is enclosed by a pair of P and V operations on semaphores
none is the above
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

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