Operating System (OS)
The FIFO algorithm

executes first the job with the least processor needs
None of these
execute first the job that has been in the queue the longest
executes first the job that last entered the queue
executes first the job that first entered the queue

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Operating System (OS)
You should choose sleep option when

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

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