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 command can be used to know the present working directory.

Question # 2

Which of following need a device driever.

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Shortest job First executes first the job.

Question # 7

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

Question # 8

What is the command that can print lines of first file matching with second file.

Question # 9

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

Question # 10

Semaphores are used to solve the problem of.

Question # 11

Which command changes a files group owner

Question # 12

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

Question # 13

Which command is used to determine the path of an executable file.

Question # 14

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

Question # 15

In which scheduling policies context switching never takes place

Question # 16

What is the meaning of SVR 4

Question # 17

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

Question # 18

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

Question # 19

Remote computing services involves the use of time sharing and

Question # 20

Seek analysis is for.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
2 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
3 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
4 What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.
A. One
B. Two
C. Three
D. Four
5 In which scheduling policies context switching never takes place
A. FCFS
B. Round robin
C. Shortest job first
D. Pre empitive
6 Which operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
7 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
8 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
9 A thread is.
A. Lightweight process where the context switching is low
B. Lightweight process where the context switching is high
C. Used to speed up paging
D. Used in dead locks
10 Remote computing services involves the use of time sharing and
A. Multiprocessing
B. Interactive processing
C. Batch processing
D. Real time processing

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