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 determine the path of an executable file.

Question # 2

Creating a job queue is a function of

Question # 3

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

Question # 4

Which one is true.

Question # 5

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

Question # 6

Which command is concerned with LINUX kernel log messages.

Question # 7

What control character signals the end of the input file.

Question # 8

Shortest job First executes first the job.

Question # 9

Distributed systems should.

Question # 10

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

Question # 11

A publics key encryption system.

Question # 12

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

Question # 13

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

Question # 14

Re location bits used by relocating loader are a pacified by

Question # 15

A thread is.

Question # 16

Dijkstra's algorithm deals with

Question # 17

What communication command provides communication to another user logged on by writing to the bottom of their terminal

Question # 18

In the shell , by default all variables are considered and stored as.

Question # 19

File inode number can be viewed by.

Question # 20

The system calls in UNIX is written using which language.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
2 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
3 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
4 Which of the following does not interrupt an running process.
A. A device
B. Timer
C. Scheduler process
D. Power failure
5 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
6 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
7 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
8 Remote computing services involves the use of.
A. Multi processing
B. Multi programming
C. Batch processing
D. Real time processing
9 Which among the following is used to write small program to control Linux Functionalities.
A. Shell commands
B. Shell script
C. C
D. Java
10 Printer in the file structure can be found in.
A. /etc
B. /html
C. /www
D. /dev

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