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 is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.

Question # 2

What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.

Question # 3

In vi editor which command sets the number for all lines.

Question # 4

Memory protection is normally done by

Question # 5

Tee command is used in LINUX for.

Question # 6

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 7

Which among following scheduling algorithms give minimum average waiting time.

Question # 8

Poor response times are caused by

Question # 9

A thread is.

Question # 10

Which of following need a device driever.

Question # 11

Which command is used to copy files.

Question # 12

Belady anomaly occurs in

Question # 13

Which among following is considered as super daemon.

Question # 14

Which of following is not an advantage of multiprogramming.

Question # 15

which option of 'grep' displays the line number as well.

Question # 16

Which is the most important for Multi taskiing.

Question # 17

The system calls in UNIX is written using which language.

Question # 18

Multiprogramming system

Question # 19

Distributed systems should.

Question # 20

Disk scheduling includes decinding

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 What is meaning of ILP32
A. 32 bit integrated Long & Pointer
B. 32 bit integer long & pointer
C. 32 bit integer Long & Point
D. 32 bit integer , Lost & pointer
2 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues
3 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
4 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
5 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
6 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
7 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
8 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
9 Which command reads the content of another file in vi editor .
A. erd
B. ex
C. r
D. read
10 How applications communicates with kernel.
A. Not disclosed by linux team
B. SSL
C. System calls
D. Shell

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