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

00:00
Question # 1

Which is not a valid file type in LINUX.

Question # 2

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

Question # 3

Which among following is considered as super daemon.

Question # 4

Which among following scheduling algorithms give minimum average waiting time.

Question # 5

Distributed system should.

Question # 6

Reference bit is used for

Question # 7

Which command in vi editor command is used to copy the current line of the file.

Question # 8

Banker's algorithm deals with

Question # 9

Memory protection is normally done by

Question # 10

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

Question # 11

Which command is used to set limits on file size.

Question # 12

A publics key encryption system.

Question # 13

Which one shows the name of the operating system.

Question # 14

Which command is concerned with LINUX kernel log messages.

Question # 15

Default permissions of file can be changed with.

Question # 16

Dijkstra's algorithm deals with

Question # 17

Distributed systems should.

Question # 18

What are the global locks.

Question # 19

Which of the following is always there in a computer.

Question # 20

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

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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 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
3 File record length
A. Should be chosen to match the data characteristics
B. Should be fixed
C. Should be variable
D. Vary system to system
4 Disk scheduling includes decinding
A. Which should be accessed next
B. Order in which disk access requests must be serviced
C. The physical location of the file
D. the logical location of the file
5 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
6 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
7 Which of the following memory allocation scheme is subject to external fragmentation.
A. Segmentation
B. Swapping
C. Demand paging
D. Multiple contiguous fixed partitions
8 Which is not a valid file type in LINUX.
A. Socket
B. FIFO
C. Soft link
D. Inode
9 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
10 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate

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