PPSC Computer Science Topic 19 MCQ's Test Preparation

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MCQ's Test For PPSC Computer Science Topic 19 Operating System

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PPSC Computer Science Topic 19 Operating System

00:00
Question # 1

Remote computing services involves the use of.

Question # 2

Which command is used to set limits on file size.

Question # 3

Which is not a valid file type in LINUX.

Question # 4

What is property of UNIX.

Question # 5

Which one shows the name of the operating system.

Question # 6

What is the meaning of SVR 4

Question # 7

Which command is used to set terminal input output characteristics

Question # 8

Which is signal user operating system.

Question # 9

Solaris is product of.

Question # 10

Which LINUX command is used to update the modification time of a file.

Question # 11

Shortest job First executes first the job.

Question # 12

Daisy chain is a device for

Question # 13

Which operating system use write through catches.

Question # 14

Multiprogramming system

Question # 15

What control character signals the end of the input file.

Question # 16

Which type of software can be used to merge data of two files in one files.

Question # 17

If two files on same partition point to the same inode structure they are called.

Question # 18

Which command gives the first byte where the difference is in the file 1 & file2

Question # 19

Spooling most beneficial where

Question # 20

Memory protection is normally done by

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory
2 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
3 What communication command provides communication to another user logged on by writing to the bottom of their terminal
A. Chat
B. Talk
C. Write
D. Sending
4 To avoid the race condition the number of process that may be simultaneously inside the critical section is
A. 1
B. 3
C. 0
D. 12
5 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
6 What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.
A. One
B. Two
C. Three
D. Four
7 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
8 Four necessary conditions for dead lock are none pre emption circular wait and
A. Mutual exclusion
B. Race condition
C. Buffer overflow
D. None of above
9 What is meaning of ILP32
A. 32 bit integrated Long & Pointer
B. 32 bit integer long & pointer
C. 32 bit integer Long & Point
D. 32 bit integer , Lost & pointer
10 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit

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