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

File can have.

Question # 2

Distributed systems should.

Question # 3

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

Question # 4

Which of the following memory allocation scheme is subject to external fragmentation.

Question # 5

Banker's algorithm deals with

Question # 6

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

Question # 7

Tee command is used in LINUX for.

Question # 8

How many links are created when we create a directory file.

Question # 9

Problem of thrashing is affected significantly by

Question # 10

Size of virtual memory depends on

Question # 11

A thread is.

Question # 12

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

Question # 13

Re location bits used by relocating loader are a pacified by

Question # 14

Which is the most important for Multi taskiing.

Question # 15

Macintosh computer uses

Question # 16

Which is signal user operating system.

Question # 17

What are the global locks.

Question # 18

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

Question # 19

Belady anomaly occurs in.

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
2 Spooling most beneficial where
A. Jobs are I/O bound
B. Jobs are CPU bound
C. Jobs are evenly divided as I/O bound are CPU bond
D. All of above
3 Problem of thrashing is affected significantly by
A. Program structure
B. Program size
C. Primary storage size
D. All of above
4 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
5 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
6 Which command can be used to know the present working directory.
A. pad
B. pww
C. pwd
D. pdd
7 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
8 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
9 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
10 Fragmentation of a file system.
A. Occurs only is file is not used properly
B. Can always the prevented
C. Happens in all file systems.
D. Can be removed by conmpaction

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