Operating System MCQs

1019 MCQs  (Page 86 of 102)

Attempt Operating System Quiz
When a fixed amount of swap space is created during disk partitioning, more swap space can be added only by? I) repartitioning of the disk II) adding another swap space elsewhere
A. Only i
B. Only ii
C. Both i and ii
D. Neither i nor ii
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In UNIX, two per process ________ are used by the kernel to track swap space use.
A. Process tables
B. Swap maps
C. Memory maps
D. Partition maps
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It is __________ to reread a page from the file system than to write it to swap space and then to reread it from there.
A. Faster
B. More expensive
C. Better
D. Slower
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A large number of disks in a system improves the rate at which data can be read or written if ____________
A. The disks are operated on sequentially
B. The disks are operated on selectively
C. The disks are operated in parallel
D. All of the mentioned
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RAID stands for ____________
A. Redundant allocation of inexpensive disks
B. Redundant array of important disks
C. Redundant allocation of independent disks
D. Redundant array of independent disks
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If the mean time to failure of a single disk is 100,000 hours, then the mean time to failure of some disk in an array of 100 disks will be ____________
A. 100 hours
B. 10 days
C. 10 hours
D. 1000 hours
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The solution to the problem of reliability is the introduction of __________
A. Aging
B. Scheduling
C. Redundancy
D. Disks
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The technique of duplicating every disk is known as ____________
A. Mirroring
B. Shadowing
C. Redundancy
D. All of the mentioned
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The mean time to failure of a mirrored disk depends on ____________ I) the mean time to failure of individual disks II) the mean time to repair
A. Only i
B. Only ii
C. Both i and ii
D. Neither i nor ii
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RAID level _______ refers to disk mirroring.
A. 0
B. 1
C. 2
D. 3
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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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