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

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

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Operating System (OS)
Round-robin scheduling

is quite complex to implement
None of these
gives each task the same chance at the processor
allows interactive tasks quicker access to the processor
allows processor-bound tasks more time in the processor

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