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Dear candidates you will find MCQ questions of Operating System (OS) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 51.17K Points
Coach

Q. 611) What is the drawback of banker’s algorithm?

(A) in advance processes rarely know that how much resource they will need
(B) the number of processes changes as time progresses
(C) resource once available can disappear
(D) all of the mentioned
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M

Mr. Dubey • 51.17K Points
Coach

Q. 612) If the wait for graph contains a cycle :

(A) then a deadlock does not exist
(B) then a deadlock exists
(C) then the system is in a safe state
(D) either deadlock exists or system is in a safe state
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M

Mr. Dubey • 51.17K Points
Coach

Q. 613) All unsafe states are :

(A) deadlocks
(B) not deadlocks
(C) fatal
(D) none of the mentioned
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M

Mr. Dubey • 51.17K Points
Coach

Q. 614) Physical memory is broken into fixed-sized blocks called ________

(A) frames
(B) pages
(C) backing store
(D) none of the mentioned
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M

Mr. Dubey • 51.17K Points
Coach

Q. 615) Logical memory is broken into blocks of the same size called _________

(A) frames
(B) pages
(C) backing store
(D) none of the mentioned
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Mr. Dubey • 51.17K Points
Coach

Q. 616) The __________ is used as an index into the page table.

(A) frame bit
(B) page number
(C) page offset
(D) frame offset
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M

Mr. Dubey • 51.17K Points
Coach

Q. 617) _____ is the concept in which a process is copied into main memory from the secondary memory according to the requirement.

(A) Paging
(B) Demand paging
(C) Segmentation
(D) Swapping
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M

Mr. Dubey • 51.17K Points
Coach

Q. 618) Linux uses a time-sharing algorithm

(A) to pair preemptive scheduling between multiple processes
(B) for tasks where absolute priorities are more important than fairness
(C) all of the mentioned
(D) none of the mentioned
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