please choose only correct answer : 1) Tool for process synchronization is * a, Pipe b, Thread c, Semaphore d, B and C e, All of the given 2) term scheduler select processes from the pool and load them into the memory for execution. * a, Short b, Medium c, Middle d, None of the given 3) A ………………….. is used to hold processes waiting on the semaphore. * a, Tree b, Stack c, Queue d, Graph 4) The methods of Dynamic partitioning suffer from ___ * a, Internal fragmentation b, external fragmentation c, Internal segmentation d, external segmentation 5) __________ creating multiple fragments in the memory because of

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