M.Sc. (Semester II) (CBCS) Examination, 2017
COMPUTER SCIENCE
LINUX OPERATING SYSTEM
Day Date: Friday, 28-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B. Q no. 1 Q. no. 2 are compulsory.
Attempt any three questions from Q. no. 3 to Q. no. 7
Figures to the right indicate full marks.
Q.1 Choose the correct Answer: 10
Which of the following command is use to see the services
running in NFS server.
rpcinfo serverinfo NFSinfo All of above
Which command is used to sort the lines of data in a file in a
reverse order?
st sort-r sh sort
Which command reduces the size of a file?
pzip gcatc pgcat gzip
The head command writes the first of a file to
screen.
Five Twenty Ten Fifteen
Effective user id can be set using following permission.
0777 2666 4744 None of above
How many links are created when we create a directory file?
1 2 3 4
Which command is used to change permission of files and
directory?
mv chgrp chmod set
In the shell by default, all variables are considered stored as.
String Integer Charcter Float
Which command is used to close the vi editior?
q wq both a b all of above
10) Which of the following below are true functionalities of shell?
Authenticates user Interprets command
Only a and b All of above
Page 1 of 2
State whether true or false. 04
Grep command is used to count number of character in a file.
In kernel signals are used to notify a process of certain faults.
Linux is an open source operating system and the source
code is shared.
4)pwd command displays password file content.
Q.2 Write short note on following. 08
Samba.
Vi-editor
Answer the following. 06
Discuss the importance of kernel in Linux system.
Explain the advantages of Linux operating system.
Q.3 Answer the following.
How can you run x-client on a remote machine? 07
Explain the file system of Linux operating system. 07
Q.4 Answer the following.
List the various permission used for files and directories?
Explain in detail.
07
What is DHCP? Explain with an example.
Q.5 Answer the following.
Explain how packages are installed and removed in Linux. 07
Write steps involved in booting of Linux loader. 07
Q.6 Answer the following.
What is the purpose of Shell? Explain different types of shell. 07
Discuss the communication facilities in Linux operating system. 07
Q.7 Answer the following.
State and explain the concept of DNS for Linux system. 07
Explain in detail about common Unix printing system. 07