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

Re location bits used by relocating loader are a pacified by

Question # 2

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

Question # 3

Disk scheduling includes decinding

Question # 4

Poor response times are caused by

Question # 5

In which of the following usually a front end processor is used.

Question # 6

Distributed system should.

Question # 7

File can have.

Question # 8

What is property of UNIX.

Question # 9

By which command content of a file can be searched.

Question # 10

Main function of shared memory is.

Question # 11

Which is the most important for Multi taskiing.

Question # 12

Which command in LINUX is used for description any command.

Question # 13

Which of the following is always there in a computer.

Question # 14

Belady anomaly occurs in.

Question # 15

Which is not a valid file type in LINUX.

Question # 16

Printer in the file structure can be found in.

Question # 17

File inode number can be viewed by.

Question # 18

Memory protection is normally done by

Question # 19

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

Question # 20

What is meaning of ILP32

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
2 Which scheduling policy is most suitable for time shared operating system.
A. Shortest job first
B. FCFS
C. LCFS
D. Round robin
3 Which command gives the first byte where the difference is in the file 1 & file2
A. Diff
B. differ
C. Cmp
D. Compare
4 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
5 Printer in the file structure can be found in.
A. /etc
B. /html
C. /www
D. /dev
6 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
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 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
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 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter

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