Operating System (OS)
Which of the following is true for machine language.

Depicting flow of data in a system
the language which communicates with the computer using only the binary digits 1 and 0.
A sequence of instructions which, when followed properly, solves a problem
None of these
Repeated execution of program segments

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Operating System (OS)
A critical region is

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

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