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Linux Interview Questions And Answers
Page 1
Ques: 1 What is Linux ?
Ans:
Linux is a multiuser operating system, like Unix, having GUI environment.
Ans:
Linux is multi user open source operating system
Ques: 2 Why should we use Linux ?
Ans:
Because of its four advantages:Freely distributed, functionality, Adaptability and Robustness.
Ques: 3
Who developed the Linux ?
Ans:
Linux was developed by LINUS TORVALDS, student of 'University of Helsinki' in Finland.
Ans:
Linux developed by LINUS TORVALDS, Who is also known as father of linux.
Ques: 4
Write about the versions of Linux ?
Ans:
Previous version :version 0.02 in 1991, version 1.0 in 1994.
Current version :version 2.6 in 2003.
Ques: 5
What is the main use of Linux ?
Ans:
It is primarily used as a Server-platform for the client-server environment.
Ques: 6
what is knoppix ?
Ans:
knoppix is CD version of the Linux. We can also work in Linux without installing it using bootable CD.
Ques: 7
What makes Linux so popular ?
Ans:
Because it's source code is freely available for everyone and it is very easy to install, customize, and use.
Ques: 8
What is 'tux' ?
Ans:
'Tux' is the official mascot,Linux Penguine of Linux.
Ques: 9 How Linux is pronounced ?
Ans:
Linux is pronounced as LIH-nucks.
Ques: 10
What is the difference between Linux and Unix ?
Ans:
Linux is an Operating system which use unix as its base and gives further more facilities and applications.Means, GUI is made in linux having unix as its core.
Ques: 11
What is Kernel ?
Ans:
It is the central component of the OS, which manages the system resources.We can say"the system which provides the lowest-level abstraction layer for the resources".
Ques: 12 What terminology is used in the Linux ?
Ans:
Different terminologies used in Linux are: Shell, Process, File, X-windows, Text-terminal, Session.
Ques: 13
What do you mean by Linux utilities ?
Ans:
Linux utilities are the most important system softwares which enables the user to interact with OS.
Ques: 14
What do you mean by Shell and Shell command ?
Ans:
Shell is the program for communication media between user and Linux OS.Shell commands that are part of command which are executed by shell.Ex- History.
Ques: 15
What is System call ?
Ans:
System calls are predefined function which are defined in the Linux library.Ex- fork().
Ques: 16
What are the different types of shell in Linux ?
Ans:
Three types of shell in Linux are: Bourne again shell(bash), korn shell(ksh), c shell(csh).
Ques: 17 How can we select the shell ?
Ans:
To change the default login shell(bash), we use the 'chsh' utility.
Ques: 18
What the following do ?
echo, cd.
Ans:
echo is for displaying the information and cd is for changing directories.
Ques: 19 What is the use of mkdir ?
Ans:
It is used for creating the directory.
Ques: 20
What do you mean by Metacharacters ?
Ans:
Metacharcters are the special charcaters which has the special meaning in every shell.
EX- <, >, >>, ?, *.
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