Operating System (OS)
You should choose sleep option when

When computer gets hanged frequently. Let it sleep for some time
You are leaving for a very short time and want to resume you work shortly
The computer is tired after working for the whole day
You finish working and going to bed

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Operating System (OS)
File record length

should be chosen to match the data characteristics
should always be fixed
depends upon the size of the file
Should always be variable
None of these

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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
Thrashing is a natural consequence of virtual memory systems.
None of these
All of these
Seek analysis is used for analysing control-unit busy problems.

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