Operating System (OS)
File record length

None of these
should always be fixed
should be chosen to match the data characteristics
depends upon the size of the file
Should always be variable

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

None of these
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

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