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

Daisy chain is a device for

Question # 2

Semaphores are used to solve the problem of.

Question # 3

A hardware device which is capable of executing a sequence of instructions, is known as.

Question # 4

For multiprogramming operating system.

Question # 5

Fragmentation of a file system.

Question # 6

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

Question # 7

In vi editor which command sets the number for all lines.

Question # 8

Which command is LINUX is concerned with backup.

Question # 9

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

Question # 10

Scissoring enables

Question # 11

Distributed systems should.

Question # 12

Which of following need a device driever.

Question # 13

Solaris is product of.

Question # 14

Which command is used to extract a column from a text file.

Question # 15

Which scheduling policy is best suited for time sharing operating system.

Question # 16

What control character signals the end of the input file.

Question # 17

File can have.

Question # 18

Problem of thrashing is affected significantly by

Question # 19

Dijkstra's algorithm deals with

Question # 20

What is the meaning of SVR 4

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which scheduling policy is best suited for time sharing operating system.
A. Shortest job first
B. Round robin
C. First come first serve
D. Elevator
2 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
3 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4
4 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
5 When did IBM released the first version of its disk operating system DOS version 1.0
A. 1981
B. 1982
C. 1983
D. 1984
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 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
8 Which is signal user operating system.
A. MS-DOS
B. UNIX
C. XENIX
D. LINUX
9 Which command reads the content of another file in vi editor .
A. erd
B. ex
C. r
D. read
10 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead

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