Operating System (OS)
Backups should be done

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

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Operating System (OS)
Round-robin scheduling

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

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