LINUX
1. What is LINUX?
Linux is an UNIX based operating system. One of the hackers, whose name is Linus Torvalds first introduced this LINUX. It is free for everyone and also open source operating system for computer users.
2. What is Linux Kernel?
Linux Kernel is low level designed software. Even, it is mostly used for hardware configuration. It provide an interface for user level interaction.
3. What are the basic components of LINUX?
It has all common components like kernel, GUIs, application programs, shells and system utilities.
4. Make a list of LINUX variants.
There are some LINUX commands are listed below
1. Ubuntu
2. Fedora
3. Redhat
4. CentOS
5. Debian
5. What is GUI?
GUI - Graphical User Interface. It uses the images and icons to communicate with system. It become more attractive and user-friendly because of the images and icons.
6. What are the basic commands for user management?
Here are the commands for user management :-
1. Chage
2. Last
3. Isof
4. Chown
5. chmod
6. useradd
7. newusers
8. userdel
9. chsh
7. What are the file permissions in LINUX?
There are 3 sort of permission in LINUX :-
1. Write :- In Linux Directory, users can easily write
2. Read :- In Linux Directory, Users can read the file and edit
3. Execute :- In a Directory, user can access and run the file in it.
8. What are the modes isued in VI editor?
There are 3 kind of modes in VI editor :-
1. Insertion mode or Edit mode
2. Regular mode or Command mode
3. Replacement mode or Ex-mode
9. How to delete information from a file in vi?
1. x deletes a current character.
2. dd deletes the curent file.
10. How to exit from vi editors?
There 2 commends, which can be helpful for exit :-
1. :wq Saves the current work and exist the VI.
2. :q! Exits the VI without saving current work.
11. What is the advantage of open source?
Open source facilities you distribute your software. So, whenever you want to add your code to furnished it, you can easily do it. Even, debug and correct errors of the source code.
12. What is process ID?
In process id, system identifies each process by unique id and that's why it's called process id.
13. What is root account?
It is system administration account, which provides full control of the system. Those people can handle users account who have entire permission.
14. What is CLI?
CLI - Command Line Intereface. It is an interface, which allows user instruct the computer to perform operations.
15. Which command is used to uncompress zip files?
gunzip command is used to uncompress the zip file.
16. What is the maximum length for a filename in Linux?
There are maximum 255 characters are used in Linux for a filename.
➽ This is model questions and answers, but this is also important question will be asked in any companies. So, be prepared for other complex questions.
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