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

Question # 2

Main function of shared memory is.

Question # 3

Creating a job queue is a function of

Question # 4

How applications communicates with kernel.

Question # 5

Belady anomaly occurs in

Question # 6

Which of the following does not interrupt an running process.

Question # 7

All device files are stored in which directory.

Question # 8

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 9

Which among following is considered as super daemon.

Question # 10

A series of statements explaining how the data is to be processed is called.

Question # 11

Fragmentation of a file system.

Question # 12

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

Question # 13

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

Question # 14

When did IBM released the first version of its disk operating system DOS version 1.0

Question # 15

Scissoring enables

Question # 16

Daisy chain is a device for

Question # 17

Distributed system should.

Question # 18

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

Question # 19

Dijkstra's algorithm deals with

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 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
3 Fragmentation of a file system.
A. Occurs only is file is not used properly
B. Can always the prevented
C. Happens in all file systems.
D. Can be removed by conmpaction
4 Seek analysis is for.
A. Paging issues
B. Device busy problems
C. Control unit busy problems
D. All of above
5 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
6 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
7 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
8 Reference bit is used for
A. Implementing LRU page replacement algorithm
B. Implementing NRU algorithm
C. To check the page table entry in the cache memory
D. None of above
9 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
10 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4

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