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

Which command is used to set terminal input output characteristics

Question # 2

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

Question # 3

Which among following scheduling algorithms give minimum average waiting time.

Question # 4

Default permissions of file can be changed with.

Question # 5

Which operating system reacts in the acutal time.

Question # 6

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 7

Scissoring enables

Question # 8

Dijkstra's algorithm deals with

Question # 9

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

Question # 10

Printer in the file structure can be found in.

Question # 11

Spooling most beneficial where

Question # 12

if the CPU scheduling policy is FCFS then what would be average waiting time.

Question # 13

A hardware device which is capable of executing a sequence of instructions, is known as.

Question # 14

All device files are stored in which directory.

Question # 15

Size of virtual memory depends on

Question # 16

Which LINUX command is used to update the modification time of a file.

Question # 17

Distributed systems should.

Question # 18

What is the command that can print lines of first file matching with second file.

Question # 19

File can have.

Question # 20

Which is signal user operating system.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
2 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
3 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
4 Dirty bit is used ot show
A. Page with corrupted data
B. Wrong page in memory
C. Page that a modified after being loaded in the cache memory
D. Page that is less frequently accessed
5 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
6 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
7 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
8 The part of machine level instruction which tells the central processor what has to be done is.
A. Operation code
B. Address
C. Locator
D. Flip flop
9 How many links are created when we create a directory file.
A. 1
B. 2
C. 3
D. 4
10 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor

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