Operating System (OS)
Scheduling is

the same regard-less of the purpose of the system
unrelated to performance consideration
allowing jobs to use the processor
None of these
not required in uniprocessor systems

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Operating System (OS)
Thrashing can be avoided if

the pages, belonging to the working set of the programs, are in main memory
All of these
the speed of CPU is increased
None of these
the speed of I/O processor is increased

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Operating System (OS)
A co-processor

Is quite common in modern computer
Works with any application
Causes all processor to function equally
Is relatively easy to support in software

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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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Operating System (OS)
Backups should be done

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

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