Operating System (OS)
Which of the following statement is true.

None of these
The LRU algorithm pages out pages that have been used recently
Seek analysis is used for analysing control-unit busy problems.
All of these
Thrashing is a natural consequence of virtual memory systems.

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Operating System (OS)
Backups should be done

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

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