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

The part of machine level instruction which tells the central processor what has to be done is.

Question # 2

Which is not a valid file type in LINUX.

Question # 3

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

Question # 4

Which command changes a files group owner

Question # 5

Which operating system use write through catches.

Question # 6

Dirty bit is used ot show

Question # 7

Which is the most important for Multi taskiing.

Question # 8

Solaris is product of.

Question # 9

All device files are stored in which directory.

Question # 10

Creating a job queue is a function of

Question # 11

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

Question # 12

Which of the following is always there in a computer.

Question # 13

Semaphores are used to solve the problem of.

Question # 14

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

Question # 15

Seek analysis is for.

Question # 16

Main function of shared memory is.

Question # 17

Poor response times are caused by

Question # 18

Which among the following is used to write small program to control Linux Functionalities.

Question # 19

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

Question # 20

File record length

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
2 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
3 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
4 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
5 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
6 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
7 A hardware device which is capable of executing a sequence of instructions, is known as.
A. CPU
B. ALU
C. CU
D. Processor
8 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
9 What communication command provides communication to another user logged on by writing to the bottom of their terminal
A. Chat
B. Talk
C. Write
D. Sending
10 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex

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