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

All device files are stored in which directory.

Question # 2

What is the meaning of SVR 4

Question # 3

Which command is used to extract a column from a text file.

Question # 4

Which command is used to know the LINUX version.

Question # 5

How applications communicates with kernel.

Question # 6

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

Question # 7

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

Question # 8

Which of following is not an advantage of multiprogramming.

Question # 9

To display disk consumption of a specific directory which command is used.

Question # 10

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

Question # 11

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

Question # 12

Which command is used to set terminal input output characteristics

Question # 13

Fragmentation of a file system.

Question # 14

All the abbreviations is vi editor can be shown by

Question # 15

Seek analysis is for.

Question # 16

Semaphores are used to solve the problem of.

Question # 17

Banker's algorithm deals with

Question # 18

Which one shows the name of the operating system.

Question # 19

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

Question # 20

File inode number can be viewed by.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 Which command in vi editor command is used to copy the current line of the file.
A. ys
B. yy
C. yc
D. yw
3 In which of the following usually a front end processor is used.
A. Virtual storage
B. Time sharing
C. Multi programming
D. Multi heading
4 Problem of thrashing is affected significantly by
A. Program structure
B. Program size
C. Primary storage size
D. All of above
5 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
6 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
7 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
8 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
9 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
10 All the abbreviations is vi editor can be shown by
A. All
B. ab
C. atat
D. ashow

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