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

A high paging rate

Question # 2

Which is the most important for Multi taskiing.

Question # 3

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

Question # 4

Problem of thrashing is affected significantly by

Question # 5

Daisy chain is a device for

Question # 6

Distributed systems should.

Question # 7

Which scheduling policy is most suitable for time shared operating system.

Question # 8

In real time OS, which is most suitable scheduling scheme.

Question # 9

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

Question # 10

Size of virtual memory depends on

Question # 11

In which of the following usually a front end processor is used.

Question # 12

Which of following need a device driever.

Question # 13

File can have.

Question # 14

File inode number can be viewed by.

Question # 15

Dirty bit is used ot show

Question # 16

Multiprogramming system

Question # 17

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 18

Which of the following is always there in a computer.

Question # 19

Which command changes a files group owner

Question # 20

In the shell , by default all variables are considered and stored as.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
2 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
3 Remote computing services involves the use of time sharing and
A. Multiprocessing
B. Interactive processing
C. Batch processing
D. Real time processing
4 The part of machine level instruction which tells the central processor what has to be done is.
A. Operation code
B. Address
C. Locator
D. Flip flop
5 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
6 Printer in the file structure can be found in.
A. /etc
B. /html
C. /www
D. /dev
7 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
8 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
9 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
10 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di

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