Operating System (OS)
The main function of the dispatcher (the portion of the process scheduler) is

None of these
swapping a process to the disk
bring processes from the disk to the main memory
assigning ready process to the CPU
suspending some of the processes when the CPU load is high

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Operating System (OS)
Capacity planning

does not depend on the monitoring tools available
is not needed in small installations
None of these
is independent of the operating system
requires detailed system performance information

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