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

Re location bits used by relocating loader are a pacified by

Question # 2

What is the meaning of SVR 4

Question # 3

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

Question # 4

What is meaning of ILP32

Question # 5

Which type of software can be used to merge data of two files in one files.

Question # 6

Which of following need a device driever.

Question # 7

Which is non pre emptive

Question # 8

A thread is.

Question # 9

Which command is used to set limits on file size.

Question # 10

Which among following is considered as super daemon.

Question # 11

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

Question # 12

Which operating system reacts in the acutal time.

Question # 13

Default permissions of file can be changed with.

Question # 14

Poor response times are caused by

Question # 15

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

Question # 16

Remote computing services involves the use of.

Question # 17

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

Question # 18

Distributed systems should.

Question # 19

How many links are created when we create a directory file.

Question # 20

Which command changes a files group owner

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session
2 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
3 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
4 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
5 Which LINUX command is used to update the modification time of a file.
A. UPDATE
B. MODIFY
C. TOUCH
D. UNTOCUH
6 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
7 How applications communicates with kernel.
A. Not disclosed by linux team
B. SSL
C. System calls
D. Shell
8 Which is not a valid file type in LINUX.
A. Socket
B. FIFO
C. Soft link
D. Inode
9 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
10 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

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