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 gives the first byte where the difference is in the file 1 & file2

Question # 2

Multiprogramming system

Question # 3

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

Question # 4

Remote computing services involves the use of time sharing and

Question # 5

Scissoring enables

Question # 6

Which of the following does not interrupt an running process.

Question # 7

Distributed systems should.

Question # 8

All device files are stored in which directory.

Question # 9

Which command in LINUX is used for description any command.

Question # 10

What is the name of values that are automatically provided by software to reduce keystrokes.

Question # 11

Which command is used to set limits on file size.

Question # 12

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

Question # 13

Which among following scheduling algorithms give minimum average waiting time.

Question # 14

What is property of UNIX.

Question # 15

Belady anomaly occurs in

Question # 16

All the abbreviations is vi editor can be shown by

Question # 17

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

Question # 18

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

Question # 19

Which technique is used by operating systems to execute several program concurrently by switching back and forth.

Question # 20

By which command content of a file can be searched.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
2 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
3 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
4 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
5 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
6 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
7 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
8 Scissoring enables
A. A part of data to be displayed
B. Entire data to be displayed
C. Full data display on full area of seen
D. No data display
9 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
10 Multiprogramming system
A. Are easier to develop than signal programming system.
B. Execute each job faster
C. Execute more jobs in the same time
D. Are used only on large main frame computers.

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