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 meaning of ILP32

Question # 2

All the abbreviations is vi editor can be shown by

Question # 3

Which one shows the name of the operating system.

Question # 4

Which among following scheduling algorithms give minimum average waiting time.

Question # 5

Scissoring enables

Question # 6

Which command is used to set terminal input output characteristics

Question # 7

Which scheduling policy is best suited for time sharing operating system.

Question # 8

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

Question # 9

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

Question # 10

All device files are stored in which directory.

Question # 11

Which command gives the first byte where the difference is in the file 1 & file2

Question # 12

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

Question # 13

Which command can be used to know the present working directory.

Question # 14

By which command content of a file can be searched.

Question # 15

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

Question # 16

Super visor state is only allowed to.

Question # 17

Problem of thrashing is affected significantly by

Question # 18

Which operating system reacts in the acutal time.

Question # 19

Which is the most important for Multi taskiing.

Question # 20

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

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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 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
3 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
4 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
5 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
6 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
7 Which command in vi editor command is used to copy the current line of the file.
A. ys
B. yy
C. yc
D. yw
8 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
9 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
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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