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

Creating a job queue is a function of

Question # 2

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 # 3

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

Question # 4

What is property of UNIX.

Question # 5

which option of 'grep' displays the line number as well.

Question # 6

Which LINUX command is used to update the modification time of a file.

Question # 7

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

Question # 8

The system calls in UNIX is written using which language.

Question # 9

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

Question # 10

In real time OS, which is most suitable scheduling scheme.

Question # 11

Belady anomaly occurs in.

Question # 12

Super visor state is only allowed to.

Question # 13

All the abbreviations is vi editor can be shown by

Question # 14

Which command reads the content of another file in vi editor .

Question # 15

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

Question # 16

Which command is used to set terminal input output characteristics

Question # 17

A high paging rate

Question # 18

Tee command is used in LINUX for.

Question # 19

Multiprogramming system

Question # 20

What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
2 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
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 operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
5 Remote computing services involves the use of.
A. Multi processing
B. Multi programming
C. Batch processing
D. Real time processing
6 Which command is used to extract a column from a text file.
A. get
B. tar
C. untar
D. cut
7 When did IBM released the first version of its disk operating system DOS version 1.0
A. 1981
B. 1982
C. 1983
D. 1984
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 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
10 Memory protection is normally done by
A. The processor and the associated hardware
B. The operating system
C. The compiler
D. The user program

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