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

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

Question # 2

Creating a job queue is a function of

Question # 3

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 # 4

Solaris is product of.

Question # 5

Tee command is used in LINUX for.

Question # 6

Multiprogramming system

Question # 7

Which operating system use write through catches.

Question # 8

Spooling most beneficial where

Question # 9

Which is the most important for Multi taskiing.

Question # 10

For multiprogramming operating system.

Question # 11

Which among following scheduling algorithms give minimum average waiting time.

Question # 12

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

Question # 13

What is property of UNIX.

Question # 14

Poor response times are caused by

Question # 15

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

Question # 16

Which is not a valid file type in LINUX.

Question # 17

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

Question # 18

Which command is used to know the LINUX version.

Question # 19

To avoid the race condition the number of process that may be simultaneously inside the critical section is

Question # 20

Which command can be used to know the present working directory.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
2 Size of virtual memory depends on
A. Size of data bus
B. Size of address bus
C. Size of main memory
D. None of above
3 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive
4 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
5 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
6 Default permissions of file can be changed with.
A. Group
B. Chperm
C. chmod
D. Chall
7 Tee command is used in LINUX for.
A.
Read from an input and write to a standard output and file.
B. Read from an input
C. Write to an output
D. None of above
8 Scissoring enables
A. A part of data to be displayed
B. Entire data to be displayed
C. Full data display on full area of seen
D. No data display
9 Which command in vi editor command is used to copy the current line of the file.
A. ys
B. yy
C. yc
D. yw
10 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording

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