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

Which type of software can be used to merge data of two files in one files.

Question # 2

What is meaning of ILP32

Question # 3

Distributed system should.

Question # 4

Which operating system use write through catches.

Question # 5

In which scheduling policies context switching never takes place

Question # 6

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 7

Printer in the file structure can be found in.

Question # 8

Multiprogramming system

Question # 9

Which LINUX command is used to update the modification time of a file.

Question # 10

Which command is used to set terminal input output characteristics

Question # 11

What is the meaning of SVR 4

Question # 12

Memory protection is normally done by

Question # 13

if the CPU scheduling policy is FCFS then what would be average waiting time.

Question # 14

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

Question # 15

Which one shows the name of the operating system.

Question # 16

Which command in LINUX is used for description any command.

Question # 17

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

Question # 18

What are the global locks.

Question # 19

Which command is used to set limits on file size.

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
2 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
3 What control character signals the end of the input file.
A. Ctrl + s
B. Ctrl + z
C. Ctrl + w
D. Ctrl + d
4 Remote computing services involves the use of.
A. Multi processing
B. Multi programming
C. Batch processing
D. Real time processing
5 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
6 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
7 Which command reads the content of another file in vi editor .
A. erd
B. ex
C. r
D. read
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 Four necessary conditions for dead lock are none pre emption circular wait and
A. Mutual exclusion
B. Race condition
C. Buffer overflow
D. None of above
10 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive

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