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

Semaphores are used to solve the problem of.

Question # 2

For multiprogramming operating system.

Question # 3

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

Question # 4

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

Question # 5

A thread is.

Question # 6

Memory protection is normally done by

Question # 7

Disk scheduling includes decinding

Question # 8

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

Question # 9

Which operating system use write through catches.

Question # 10

What is the meaning of SVR 4

Question # 11

How many links are created when we create a directory file.

Question # 12

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 13

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

Question # 14

How applications communicates with kernel.

Question # 15

Which operating system reacts in the acutal time.

Question # 16

Tee command is used in LINUX for.

Question # 17

Which is non pre emptive

Question # 18

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

Question # 19

Dirty bit is used ot show

Question # 20

Banker's algorithm deals with

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
2 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
3 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
4 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
5 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
6 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
7 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
8 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
9 Semaphores are used to solve the problem of.
A. Race condition
B. Process synchronization
C. Mutual exclusion
D. Belady problem
10 Which among the following is used to write small program to control Linux Functionalities.
A. Shell commands
B. Shell script
C. C
D. Java

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