Operating System (OS)
Which of the following is not true about the memory management?

paging suffers from internal fragmentation
segmentation suffers from external fragmentation
segmented memory can be paged
virtual memory is used only in multi-user systems
None of these

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Operating System (OS)
Scheduling is

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

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Operating System (OS)
The dispatcher

None of these
is always small and simple
puts tasks in I/O wait
actually schedules the tasks into the processor
never changes task priorities

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