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

When did IBM released the first version of its disk operating system DOS version 1.0

Question # 2

Spooling most beneficial where

Question # 3

Which command is used to record a user login session in a file.

Question # 4

In vi editor which command sets the number for all lines.

Question # 5

Which of following need a device driever.

Question # 6

Banker's algorithm deals with

Question # 7

Scissoring enables

Question # 8

Shortest job First executes first the job.

Question # 9

Problem of thrashing is affected significantly by

Question # 10

Which process is known for initializing a microcomputer with its OS.

Question # 11

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

Question # 12

Memory protection is normally done by

Question # 13

Solaris is product of.

Question # 14

Which is the most important for Multi taskiing.

Question # 15

which option of 'grep' displays the line number as well.

Question # 16

Which command is used to copy files.

Question # 17

Main function of shared memory is.

Question # 18

Daisy chain is a device for

Question # 19

Disk scheduling includes decinding

Question # 20

A thread is.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
2 What are the global locks.
A. They synchronize access to local resources.
B. They synchronize access to global resources
C. They synchronize access to local and global resources
D. None of above
3 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
4 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
5 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
6 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
7 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
8 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
9 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
10 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl

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