Question Discussion & Solution

MCQ

An I/O bound program will typically have ____________

a few very short CPU bursts

many very short I/O bursts

many very short CPU bursts

a few very short I/O bursts

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none of the mentioned

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What is FIFO algorithm?

first executes the job that came in last in the queue

first executes the job that came in first in the queue

first executes the job that needs minimal processor

first executes the job that has maximum processor needs

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Using Earliest deadline first (EDF) algorithm practically, it is impossible to achieve 100 percent utilization due to __________

the cost of context switching

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power consumption

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Under multiprogramming, turnaround time for short jobs is usually ________ and that for long jobs is slightly ___________

Lengthened; Shortened

Shortened; Lengthened

Shortened; Shortened

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Which scheduling algorithm allocates the CPU first to the process that requests the CPU first?

first-come, first-served scheduling

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priority scheduling

none of the mentioned

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