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 is used to extract a column from a text file.

Question # 2

Memory protection is normally done by

Question # 3

What are the global locks.

Question # 4

How applications communicates with kernel.

Question # 5

The system calls in UNIX is written using which language.

Question # 6

Re location bits used by relocating loader are a pacified by

Question # 7

File can have.

Question # 8

Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.

Question # 9

Seek analysis is for.

Question # 10

Solaris is product of.

Question # 11

A thread is.

Question # 12

Which of following need a device driever.

Question # 13

Poor response times are caused by

Question # 14

Banker's algorithm deals with

Question # 15

File record length

Question # 16

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Which command is used to set limits on file size.

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PPSC Class ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
2 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
3 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
4 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
5 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
6 What are the global locks.
A. They synchronize access to local resources.
B. They synchronize access to global resources
C. They synchronize access to local and global resources
D. None of above
7 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
8 Which of the following does not interrupt an running process.
A. A device
B. Timer
C. Scheduler process
D. Power failure
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 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting

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