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

Spooling most beneficial where

Question # 2

By which of following the problem of thrashing is significantly affected.

Question # 3

What are the global locks.

Question # 4

Semaphores are used to solve the problem of.

Question # 5

Which is signal user operating system.

Question # 6

What is meaning of ILP32

Question # 7

What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.

Question # 8

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

Question # 9

Which of the following is always there in a computer.

Question # 10

Which scheduling policy is most suitable for time shared operating system.

Question # 11

File record length

Question # 12

Banker's algorithm deals with

Question # 13

Memory protection is normally done by

Question # 14

Printer in the file structure can be found in.

Question # 15

Which operating system use write through catches.

Question # 16

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

Question # 17

What control character signals the end of the input file.

Question # 18

Dirty bit is used ot show

Question # 19

Daisy chain is a device for

Question # 20

Remote computing services involves the use of time sharing and

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 A publics key encryption system.
A. Allows only the correct sender to decode the data
B. Allows only the correct receiver to decode the data
C. Allows any one to decode the data
D. None of above
2 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
3 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
4 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues
5 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
6 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
7 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
8 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
9 If two files on same partition point to the same inode structure they are called.
A. Soft links
B. Hard links
C. Copy links
D. similar links
10 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes

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