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

Tee command is used in LINUX for.

Question # 2

Which of following is not an advantage of multiprogramming.

Question # 3

Fragmentation of a file system.

Question # 4

Which command is used to record a user login session in a file.

Question # 5

A publics key encryption system.

Question # 6

Which command is used to set terminal input output characteristics

Question # 7

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

Question # 8

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

Question # 9

By which command content of a file can be searched.

Question # 10

All the abbreviations is vi editor can be shown by

Question # 11

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

Question # 12

Which scheduling policy is most suitable for time shared operating system.

Question # 13

Which is signal user operating system.

Question # 14

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

Question # 15

When did IBM released the first version of its disk operating system DOS version 1.0

Question # 16

How applications communicates with kernel.

Question # 17

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

Question # 18

Main function of shared memory is.

Question # 19

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

Question # 20

Which of the following does not interrupt an running process.

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Sr.# Question Answer
1 Which among the following is used to write small program to control Linux Functionalities.
A. Shell commands
B. Shell script
C. C
D. Java
2 Poor response times are caused by
A. Busy processor
B. High I/O rate
C. High paging rates
D. any of above
3 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
4 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
5 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
6 Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory
7 Semaphores are used to solve the problem of.
A. Race condition
B. Process synchronization
C. Mutual exclusion
D. Belady problem
8 Tee command is used in LINUX for.
A.
Read from an input and write to a standard output and file.
B. Read from an input
C. Write to an output
D. None of above
9 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
10 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues

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