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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  • Total Questions20

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PPSC Computer Science Topic 19 Operating System

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Question # 1

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

Question # 2

Which command in LINUX is used for description any command.

Question # 3

Which is the most important for Multi taskiing.

Question # 4

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

Question # 5

Which among following is considered as super daemon.

Question # 6

Distributed system should.

Question # 7

Which command reads the content of another file in vi editor .

Question # 8

All device files are stored in which directory.

Question # 9

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

Question # 10

Problem of thrashing is affected significantly by

Question # 11

Dijkstra's algorithm deals with

Question # 12

Belady anomaly occurs in.

Question # 13

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.

Question # 14

Belady anomaly occurs in

Question # 15

For multiprogramming operating system.

Question # 16

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

Question # 17

Disk scheduling includes decinding

Question # 18

All the abbreviations is vi editor can be shown by

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

which option of 'grep' displays the line number as well.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
2 In which scheduling policies context switching never takes place
A. FCFS
B. Round robin
C. Shortest job first
D. Pre empitive
3 To avoid the race condition the number of process that may be simultaneously inside the critical section is
A. 1
B. 3
C. 0
D. 12
4 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
5 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
6 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
7 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
8 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
9 Printer in the file structure can be found in.
A. /etc
B. /html
C. /www
D. /dev
10 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

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