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

Remote computing services involves the use of.

Question # 2

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

Question # 3

Banker's algorithm deals with

Question # 4

Remote computing services involves the use of time sharing and

Question # 5

Daisy chain is a device for

Question # 6

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

Question # 7

if the CPU scheduling policy is FCFS then what would be average waiting time.

Question # 8

Which operating system reacts in the acutal time.

Question # 9

Belady anomaly occurs in.

Question # 10

Which operating system use write through catches.

Question # 11

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

Question # 12

Dirty bit is used ot show

Question # 13

Which one shows the name of the operating system.

Question # 14

Tee command is used in LINUX for.

Question # 15

What is meaning of ILP32

Question # 16

All device files are stored in which directory.

Question # 17

What is the command that can print lines of first file matching with second file.

Question # 18

Which LINUX command is used to update the modification time of a file.

Question # 19

Which one is true.

Question # 20

Multiprogramming system

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PPSC Class ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None
2 A publics key encryption system.
A. Allows only the correct sender to decode the data
B. Allows only the correct receiver to decode the data
C. Allows any one to decode the data
D. None of above
3 In which scheduling policies context switching never takes place
A. FCFS
B. Round robin
C. Shortest job first
D. Pre empitive
4 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
5 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
6 Which is signal user operating system.
A. MS-DOS
B. UNIX
C. XENIX
D. LINUX
7 Which type of software can be used to merge data of two files in one files.
A. System software
B. Networking software
C. Documenting software
D. utility software
8 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
9 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
10 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU

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