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

00:00
Question # 1

Which command is LINUX is concerned with backup.

Question # 2

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

Question # 3

What are the global locks.

Question # 4

Which command can be used to know the present working directory.

Question # 5

What is meaning of ILP32

Question # 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.

Question # 7

By which of following the problem of thrashing is significantly affected.

Question # 8

Distributed system should.

Question # 9

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 10

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

Question # 11

Which is the most important for Multi taskiing.

Question # 12

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 13

Main function of shared memory is.

Question # 14

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

Question # 15

Distributed systems should.

Question # 16

Which among the following is used to write small program to control Linux Functionalities.

Question # 17

Which command in LINUX is used for description any command.

Question # 18

Default permissions of file can be changed with.

Question # 19

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

Question # 20

Which process is known for initializing a microcomputer with its OS.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Poor response times are caused by
A. Busy processor
B. High I/O rate
C. High paging rates
D. any of above
2 Which of following need a device driever.
A. Cache
B. Disk
C. Main memory
D. Registers
3 What is meaning of ILP32
A. 32 bit integrated Long & Pointer
B. 32 bit integer long & pointer
C. 32 bit integer Long & Point
D. 32 bit integer , Lost & pointer
4 A hardware device which is capable of executing a sequence of instructions, is known as.
A. CPU
B. ALU
C. CU
D. Processor
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 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
7 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
8 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
9 A thread is.
A. Lightweight process where the context switching is low
B. Lightweight process where the context switching is high
C. Used to speed up paging
D. Used in dead locks
10 Which command can be used to know the present working directory.
A. pad
B. pww
C. pwd
D. pdd

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