Operating System Questions And Answers - Computer Science MCQ - Page 4

(Showing: 31 - 40 out of 94 MCQs) Operating System is the main function-able part of our computer system. The operating system multiple choice questions and answers are discussed as below along with their explanations as necessary.
31. ______ is a high level abstraction over Semaphore.
[A] Shared memory
[B] Monitor
[C] Mutual Exclusion
[D] None
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32. A tree sturctured file directory system
[A] allows easy storage and retrieval of file names
[B] is a much debated unecessary feature
[C] is not essential when we have millions of files
[D] none of the above
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33. A computer system that permits multiple users to run programs at same time
[A] Real time system
[B] Multi tasking system
[C] Time Sharing
[D] Multi processing
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34. Telnet is a service that runs
[A] Remote Program
[B] Television on net
[C] Telnet
[D] Cable TV network
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35. A device that forwards data packet from one network to another is called a
[A] Bridge
[B] Switch
[C] Hub
[D] Gateway
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36. Resolution of externally defined symbols is performed by
[A] Linker
[B] Loader
[C] Compiler
[D] Assembler
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37. A computer communication technology that provides a way to interconnect multiple computer across short distance is
[A] LAN
[B] WAN
[C] MAN
[D] Wireless Network
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38. Which command is used to see the sub-directory structure of drive?
[A] Tree
[B] List
[C] Subtree
[D] none
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39. In wildcard specification `?' is used as replacement for
[A] one character
[B] Two Character
[C] Three Character
[D] None
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40. Memory management is:
[A] replaced with virtual memory on current systems
[B] not used in modern operating system
[C] not used on multiprogramming systems
[D] critical for even the simplest operating systems
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murugesan 1 week ago Reply

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jafar hussain 4 months ago Reply

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Nagesh 7 months ago Reply

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amanuel bedelu 10 months ago Reply

resionable questions Thank you !!!!!!!!!!!!!!


Anil Kumar 1 year ago Reply

Very helpful for competitive exams


IZHAR WAJID 1 year ago Reply

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Rupesh Dode 1 year ago Reply

very useful my technical example


Madhumita majumder 1 year ago Reply

Amazing..... it is very helpful to me


Pankaj Pawar 1 year ago Reply

Good one..But if you provide explaination to each answer, then it will be more advantageous.


vijay kumar 2 years ago Reply

6. In the blocked state ?
[A] the processes waiting for I/O are found
[B] the process which is running is found
[C] the processes waiting for the processor are found
[D] none of the above
Answer: A. the processes waiting for I/O are found
ans is incorrect
In some website ans C is OK

Anirudh Chauhan 1 year ago

in blocked state processes keep waiting either for resources or for I/O . So option A is correct.