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

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

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Operating System (OS)
Backups should be done

as several image copies, followed by an incremental
weekly for most installations
None of these
as several incrementals, followed by an image copy
daily for most installations

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