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

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

Question # 2

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

Question # 3

Which among following scheduling algorithms give minimum average waiting time.

Question # 4

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

Question # 5

Which of following need a device driever.

Question # 6

Which is non pre emptive

Question # 7

Remote computing services involves the use of time sharing and

Question # 8

All the abbreviations is vi editor can be shown by

Question # 9

Which command in LINUX is used for description any command.

Question # 10

Which command is used to set limits on file size.

Question # 11

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

Question # 12

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 13

Which command in vi editor command is used to copy the current line of the file.

Question # 14

What is the name of values that are automatically provided by software to reduce keystrokes.

Question # 15

Dijkstra's algorithm deals with

Question # 16

Creating a job queue is a function of

Question # 17

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

Question # 18

Which is signal user operating system.

Question # 19

Main function of shared memory is.

Question # 20

Which command is used to know the LINUX version.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 What control character signals the end of the input file.
A. Ctrl + s
B. Ctrl + z
C. Ctrl + w
D. Ctrl + d
2 Poor response times are caused by
A. Busy processor
B. High I/O rate
C. High paging rates
D. any of above
3 Which type of software can be used to merge data of two files in one files.
A. System software
B. Networking software
C. Documenting software
D. utility software
4 A thread is.
A. Lightweight process where the context switching is low
B. Lightweight process where the context switching is high
C. Used to speed up paging
D. Used in dead locks
5 Daisy chain is a device for
A. Connecting a number of controllers to a device
B. Connecting a number of device to a controller
C. all of above
D. None of above
6 Which command is used to set terminal input output characteristics
A. Atty
B. stty
C. dtty
D. itty
7 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
8 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
9 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
10 Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory

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