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“Linux Administrator related frequently asked questions by expert members with experience in Linux OS. These questions and answers will help you strengthen your technical skills, prepare for the new job test and quickly revise the concepts”



43 Linux Administrator Questions And Answers

1⟩ Tell me which components of Linux provides pre-written code that a developer can use?

Linux libraries contain pre-written code that a developer can reuse in their applications.

Your company purchased 5 new laptops. Laptop have Intel core i3 processor and Window 8 installed. Your network admin wants to install RHEL on them, but is concerned that it cannot be done because they already have Window 8 installed. Can this be done?

Yes you can install any operating system as long as the hardware is compatible. Hardware and operating systems are modular. Computer hardware is not tied in any way to a particular OS. Every OS have some minimum hardware requirements, if your hardware meets with that requirements, you can install that OS.

You are a network administrator, your company wants you to download the source code of latest Linux kernel for the developer team. Can you do this?

Source code of Linux kernel is available under the GPL license. Under the GPL, you are free to download the Linux source code and modify it.

Your company have less funds but need a reliable file server set up? Which OS and file server service can you use ?

Use Linux operating with NFS file service.

You have purchased new laptop and want to resell old one, but you don't want to violate any licensing for OS. What can you do to avoid violating a software license?

You can install Linux OS. All major software's for Linux are available under the GPL, those you can use without violating any software license.

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9⟩ Do you know who initiated the GNU project?

GNU project was initiated by Richard Stallman on 27 September 1983 at MIT. Main motive of this project was to give freedom and control in use of software's. GNU software guarantees these freedom-rights legally via its license. Users are free to run the software, share it, copy it, distribute it, study it and modify it.

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11⟩ What is POSIX?

POSIX stands for Portable Operating System Interface for Computer Environments. It is the standard for ensuring compatibility between UNIX versions.

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13⟩ What is Minix?

Minix is the UNIX clone written by Andrew Tanenbaum at VU University, in Amsterdam when universities were no longer allowed access to the UNIX source code. MINIX also inspired the creation of the Linux kernel.

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14⟩ Explain load average in linux?

Load Average is defined as the average sum of the number of process waiting in the run queue and number of process currently executing over the period of 1,5 and 15 minutes. Using the 'top' and 'uptime' command we find the load average of a linux sever.

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19⟩ Explain Puppet Server?

Puppet is an open-source & enterprise software for configuration management toll in UNIX like operating system. Puppet is a IT automation software used to push configuration to its clients (puppet agents) using code. Puppet code can do a variety of tasks from installing new software, to check file permissions, or updating user accounts & lots of other tasks.

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20⟩ How to add & change the Kernel parameters?

To Set the kernel parameters in linux , first edit the file '/etc/sysctl.conf' after making the changes save the file and run the command 'sysctl -p' , this command will make the changes permanently without rebooting the machine.

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