Operating System (OS)
Which one is true for unconditional disk formatting?

Do not check/scan surface after format
All of above
Destroys every byte of data on a disk by overwriting it with with blank spaces
Transfer system files after format

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

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

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