Operating System (OS)
Which of the following functions is(are) performed by the loader

physically place the machine instructions and data into memory.
adjust all address dependent locations, such as address constants, to correspond to the allocated space.
None of these
All of these
allocate space in memory for the programs and resolve symbolic references between object decks

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Operating System (OS)
A critical region is

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
a program segment that often causes unexpected system crashes
a program segment that has not been proved bug-free

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