Operating System MCQs

1019 MCQs  (Page 102 of 102)

Attempt Operating System Quiz
Which of the following provides a buffer between the user and the low-level interfaces to the hardware?
A. Operating system
B. Kernel
C. Software
D. Hardware
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In UNIX, even an ’empty’ disk has a percentage of its space lost to ______
A. Programs
B. Inodes
C. Virtual memory
D. Stacks
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By preallocating the inodes and spreading them across the volume, we ___________ the system performance.
A. Improve
B. Decrease
C. Maintain
D. Do not affect
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____________ writes occur in the order in which the disk subsystem receives them, and the writes are not buffered.
A. Asynchronous
B. Regular
C. Synchronous
D. Irregular
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In ___________ writes, the data is stored in the cache.
A. Asynchronous
B. Regular
C. Synchronous
D. Irregular
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A file being read or written sequentially should not have its pages replaced in LRU order, because _____________
A. It is very costly
B. The most recently used page will be used last
C. It is not efficient
D. All of the mentioned
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In the optimized technique for sequential access ___________ removes a page from the buffer as soon as the next page is requested.
A. Write ahead
B. Read ahead
C. Free-behind
D. Add-front
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With _______ a requested page and several subsequent pages are read and cached.
A. Write ahead
B. Read ahead
C. Free-behind
D. Add-front
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On which port will the server generally listen to for SMTP?
A. Port 35
B. Port 63
C. Port 25
D. Port 65
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Word of the Day
10 Jul
Spur
a thing that prompts or encourages someone; an incentive.
اکسانے والی بات، آر،مہمیز

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