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

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

Question # 2

Which of following need a device driever.

Question # 3

Belady anomaly occurs in

Question # 4

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

Question # 5

Which is not a valid file type in LINUX.

Question # 6

Which among following scheduling algorithms give minimum average waiting time.

Question # 7

Which among following is considered as super daemon.

Question # 8

Super visor state is only allowed to.

Question # 9

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

Question # 10

Which command is concerned with LINUX kernel log messages.

Question # 11

Which one is true.

Question # 12

Which technique is used by operating systems to execute several program concurrently by switching back and forth.

Question # 13

Which type of software can be used to merge data of two files in one files.

Question # 14

Dijkstra's algorithm deals with

Question # 15

Reference bit is used for

Question # 16

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

Question # 17

Which among the following is used to write small program to control Linux Functionalities.

Question # 18

Which command is used to determine the path of an executable file.

Question # 19

Which operating system use write through catches.

Question # 20

Which command changes a files group owner

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command is used to set terminal input output characteristics
A. Atty
B. stty
C. dtty
D. itty
2 Scissoring enables
A. A part of data to be displayed
B. Entire data to be displayed
C. Full data display on full area of seen
D. No data display
3 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
4 Which command is used to know the LINUX version.
A. Uname
B. Vname
C. Iname
D. s name
5 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
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 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
9 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session
10 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

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