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

Re location bits used by relocating loader are a pacified by

Question # 2

Belady anomaly occurs in.

Question # 3

To avoid the race condition the number of process that may be simultaneously inside the critical section is

Question # 4

What are the global locks.

Question # 5

What communication command provides communication to another user logged on by writing to the bottom of their terminal

Question # 6

All device files are stored in which directory.

Question # 7

In which scheduling policies context switching never takes place

Question # 8

To display disk consumption of a specific directory which command is used.

Question # 9

Distributed systems should.

Question # 10

Which one is true.

Question # 11

The part of machine level instruction which tells the central processor what has to be done is.

Question # 12

Problem of thrashing is affected significantly by

Question # 13

Which of the following does not interrupt an running process.

Question # 14

Which is signal user operating system.

Question # 15

Which command is LINUX is concerned with backup.

Question # 16

Which of following is not an advantage of multiprogramming.

Question # 17

By which command content of a file can be searched.

Question # 18

Spooling most beneficial where

Question # 19

Which command is used to know the LINUX version.

Question # 20

Dijkstra's algorithm deals with

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 Shortest job First executes first the job.
A. With the least processor needs
B. That first entered the queue
C. That has been in the queue for the longest
D. That last entered the queue
3 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
4 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
5 Main function of shared memory is.
A. To use primary memory efficiently
B. To do intra process communication
C. All of above
D. None
6 Reference bit is used for
A. Implementing LRU page replacement algorithm
B. Implementing NRU algorithm
C. To check the page table entry in the cache memory
D. None of above
7 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
8 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
9 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
10 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system

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