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


Computer Science : Operating System (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

Answer: B. Monitor

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

Answer: A. allows easy storage and retrieval of file names

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

Answer: B. Multi tasking system

34. Telnet is a service that runs
[A] Remote Program
[B] Television on net
[C] Telnet
[D] Cable TV network

Answer: A. Remote Program

35. A device that forwards data packet from one network to another is called a
[A] Bridge
[B] Switch
[C] Hub
[D] Gateway

Answer: B. Switch

36. Resolution of externally defined symbols is performed by
[A] Linker
[B] Loader
[C] Compiler
[D] Assembler

Answer: A. Linker

37. A computer communication technology that provides a way to interconnect multiple computer across short distance is
[D] Wireless Network

Answer: A. LAN

38. Which command is used to see the sub-directory structure of drive?
[A] Tree
[B] List
[C] Subtree
[D] none

Answer: A. Tree

39. In wildcard specification `?' is used as replacement for
[A] one character
[B] Two Character
[C] Three Character
[D] None

Answer: A. one character

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

Answer: A. replaced with virtual memory on current systems

Comments: (Your feedback is valuable to us)

Deb 1 month ago Reply

its really helpful for technical exam.thans .

raju kande 1 month ago Reply

This is excellent

usman 3 months ago Reply

70th is D: data inconsistency, not redundancy. redundancy is unusual repetition of data.

Tester 5 months ago Reply


mir mudasir 8 months ago Reply

useful questions for exams

mir mudasir 8 months ago Reply

useful questions for exams

mir mudasir 8 months ago Reply

useful questions for exams

JAMAL 8 months ago Reply

Q 69 answer is wrong at correct answer is option C

sathish 8 months ago Reply

94 th Question answer MULTIPLEXING.. not multiprogramming...

rekha 11 months ago Reply

94th question's answer should be multiprogramming

sathish 8 months ago

That answer is Multiplexing

karthi 1 year ago Reply


ibrahim bere 1 year ago Reply

Great effort,i like it.

nare 1 year ago Reply

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Butterfly 1 year ago Reply

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DILIP PRAJAPATI 1 year ago Reply

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vahida 1 year ago Reply

nice collection.

sachin 1 year ago Reply


Saleem Salamat 1 year ago Reply

good knowledge

Solbin 1 year ago Reply


Shrikant Irgond 1 year ago Reply

really helpful to me.