Operating System MCQs

1019 MCQs  (Page 40 of 102)

Attempt Operating System Quiz
When a page fault occurs before an executing instruction is complete if ____________
A. The instruction must be restarted
B. The instruction must be ignored
C. The instruction must be completed ignoring the page fault
D. None of the mentioned
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Consider a machine in which all memory reference instructions have only one memory address, for them we need at least _____ frame(s).
A. One
B. Two
C. Three
D. None of the mentioned
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The maximum number of frames per process is defined by ____________
A. The amount of available physical memory
B. Operating system
C. Instruction set architecture
D. None of the mentioned
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The algorithm in which we split m frames among n processes, to give everyone an equal share, m/n frames is known as ____________
A. Proportional allocation algorithm
B. Equal allocation algorithm
C. Split allocation algorithm
D. None of the mentioned
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The algorithm in which we allocate memory to each process according to its size is known as ____________
A. Proportional allocation algorithm
B. Equal allocation algorithm
C. Split allocation algorithm
D. None of the mentioned
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With either equal or proportional algorithm, a high priority process is treated ___________ a low priority process.
A. Greater than
B. Same as
C. Lesser than
D. None of the mentioned
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_________ replacement allows a process to select a replacement frame from the set of all frames, even if the frame is currently allocated to some other process.
A. Local
B. Universal
C. Global
D. Public
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_________ replacement allows each process to only select from its own set of allocated frames.
A. Local
B. Universal
C. Global
D. Public
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One problem with the global replacement algorithm is that ____________
A. It is very expensive
B. Many frames can be allocated to a process
C. Only a few frames can be allocated to a process
D. A process cannot control its own page €? fault rate
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________ replacement generally results in greater system throughput.
A. Local
B. Global
C. Universal
D. Public
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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
ضدی، بدکار، سنگدلی

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