Operating System (OS)
You should choose sleep option when

When computer gets hanged frequently. Let it sleep for some time
You finish working and going to bed
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

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Operating System (OS)
A linker

must be run after the loader
None of these
is not necessary with variable partitions
creates a load module
is not needed with a good compiler

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