Operating System (OS)
The SJF algorithm executes first the job

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

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Operating System (OS)
A Processor

is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
None of these
is a sequence of instructions
is typically characterized by interactive processing and time of the CPU

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Operating System (OS)
Feed back queue

require manual intervention to implement properly
dispatch tasks according to execution characteristics
are very easy to implement
are used to favor real-time tasks
None of these

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Operating System (OS)
What is dispatch latency ?

The whole time taken by all processor
None of the listed here
The time taken by the dispatcher to stop one process and start another
The time taken by the processor to write a file into disk

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