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

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Question # 1

Which command is used to copy files.

Question # 2

All the abbreviations is vi editor can be shown by

Question # 3

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 4

Which of following is not an advantage of multiprogramming.

Question # 5

For multiprogramming operating system.

Question # 6

What is meaning of ILP32

Question # 7

Which among following is considered as super daemon.

Question # 8

In which of the following usually a front end processor is used.

Question # 9

Belady anomaly occurs in.

Question # 10

Disk scheduling includes decinding

Question # 11

Shortest job First executes first the job.

Question # 12

Which of the following does not interrupt an running process.

Question # 13

Which is not a valid file type in LINUX.

Question # 14

File record length

Question # 15

Which command is used to set limits on file size.

Question # 16

Dirty bit is used ot show

Question # 17

File inode number can be viewed by.

Question # 18

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

Question # 19

What is the meaning of SVR 4

Question # 20

Which one is true.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
2 Which operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
3 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
4 Which scheduling policy is best suited for time sharing operating system.
A. Shortest job first
B. Round robin
C. First come first serve
D. Elevator
5 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4
6 File record length
A. Should be chosen to match the data characteristics
B. Should be fixed
C. Should be variable
D. Vary system to system
7 Daisy chain is a device for
A. Connecting a number of controllers to a device
B. Connecting a number of device to a controller
C. all of above
D. None of above
8 The part of machine level instruction which tells the central processor what has to be done is.
A. Operation code
B. Address
C. Locator
D. Flip flop
9 Which scheduling policy is most suitable for time shared operating system.
A. Shortest job first
B. FCFS
C. LCFS
D. Round robin
10 Which is non pre emptive
A. Round robin
B. FIFO
C. MS
D. MSF

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