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

Which command is used to copy files.

Question # 3

What is the meaning of SVR 4

Question # 4

File record length

Question # 5

If two files on same partition point to the same inode structure they are called.

Question # 6

Which command is used to record a user login session in a file.

Question # 7

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

Question # 8

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

Question # 9

In vi editor which command sets the number for all lines.

Question # 10

A high paging rate

Question # 11

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

Question # 12

Dirty bit is used ot show

Question # 13

Which operating system use write through catches.

Question # 14

Which one is true.

Question # 15

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

Question # 16

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

Question # 17

Which among following scheduling algorithms give minimum average waiting time.

Question # 18

Which command changes a files group owner

Question # 19

The system calls in UNIX is written using which language.

Question # 20

Which among following is considered as super daemon.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
2 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
3 Shortest job First executes first the job.
A. With the least processor needs
B. That first entered the queue
C. That has been in the queue for the longest
D. That last entered the queue
4 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
5 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
6 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
7 Which LINUX command is used to update the modification time of a file.
A. UPDATE
B. MODIFY
C. TOUCH
D. UNTOCUH
8 Which technique is used by operating systems to execute several program concurrently by switching back and forth.
A. Partitioning
B. Multitasking
C. Windowing
D. Paging
9 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
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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