If so, here are 60 must-read Linux interview questions and detailed responses based on various scenarios to help you with your preparation.
These Linux interview questions will undoubtedly increase your knowledge to the point where you can pass the Linux interview and answer the questions with assurance. For your Linux interview preparation, we have a number of questions and answers based on different levels of fundamental, sophisticated, technical, administrative, kernel, and commands.
Therefore, we will begin by responding to some of the fundamental Linux interview questions before moving on to more complex ones so that you can adequately prepare for the Linux interview and deliver an excellent performance. You will find these Linux interview questions useful for last-minute interview preparation. However, to increase your chances of landing the job, we suggest that you obtain a Linux certification to demonstrate your proficiency.
Top 10 Scenario-Based Linux Interview Questions and Answers with Practical – Real Time
If you have any additional queries, kindly post them along with any potential responses you wish to provide here.
Q. By default, systemtl’s “restart” command will restart the specified service, for example, systemctl restart sshd. Is it possible to ensure that systemctl will only perform restart if the specified service is running and if the target service is not running? e. Systemctl shouldn’t try to restart a service that has failed, stopped, or other issues. A. The following two options are available in RHEL 7: systemctl try-restart something service OR systemctl condrestart something. service.
If a kernel panic is seen, restart the system using an alternative kernel or rescue, and then turn on kdump. Share the kdump with the support engineers so they can attempt to identify the problem’s root cause in more detail.
Q. After a successful server installation, I go to the location where the logs were saved but there is nothing there. Does this mean the log were never created? Did I use incorrect syntax? How do I check this? Q: During kickstart-based installation of my RHEL 7 node, I have generated a log file at%pre stage for the scripts which were executed. Use the –log argument to create a log file for the respective%pre or%post section. For instance, %pre –log=/var/log/kickstart_pre log %end.
Q. When I try to install software using the kickstart method, it fails with the error “Software selection (Source changed – please verify)”. Now that there may be numerous other errors of this nature, how can I determine what caused the installation to fail? Since Kickstart Anaconda does not give me a login shell following the failure, I am unable to investigate this further. A. When performing a kickstart-based installation, multiple terminals are automatically created as soon as Anaconda starts up. If the installation fails at the first terminal, you can always navigate to another terminal to get a bash prompt. You can try to identify the root cause of the installation failure by looking through all the installation logs that are stored in /tmp.
What is the difference between UNIX and LINUX?
Bell Laboratories originally developed Unix as a proprietary operating system, and various commercial versions followed. Linux, on the other hand, is a non-propriety operating system that is free, open source, and aimed at the general public.
BASH is short for Bourne Again SHell. Steve Bourne created it to take the place of the first Bourne Shell, which is represented by /bin/sh. It combines all of Bourne Shell’s original features with new functions to make using it simpler and more convenient. Since then, it has been modified and is now the standard shell for most Linux-powered systems.
What is Linux?
Linux is an Open-Source Operating System based on Unix. Linux was first introduced by Linus Torvalds. Linux was created primarily as a free and affordable operating system for users who could not afford more expensive operating systems like Windows, iOS, or Unix.
Part A-Theoretical Questions
We will discuss the most prevalent theoretical and concept-based questions in this section of the Linux Interview Questions.
FAQ
What are the basic interview questions on Linux?
- 1) What is Linux? …
- 2) What is the difference between UNIX and Linux? …
- 3) What is Linux Kernel? …
- 4) Is it legal to edit Linux Kernel? …
- 5) What is LILO? …
- 6) What is the advantage of open source? …
- 7) What are the basic components of Linux?
What are the interview questions for Linux administrator?
- What are the differences between Linux and Windows OS?
- Explain the differences between a UNIX and LINUX system?
- What are the basic elements of LINUX?
- Can you explain what LILO is?
- Give an example of a service you might remove from a Linux server.
- How would you check memory and CPU statistics?
How do I prepare for Linux admin interview?
- Do your homework on modern tools and technologies. …
- Prepare to discuss evolutionary trends. …
- Prepare to provide specifics about your abilities and prior experience.
- The staples of sysadmin interviews. …
- How a particular technology or system served a business goal.
What is LVM in Linux interview questions?
Instead of using traditional partitioning, LINUX uses LVM to divide up the storage areas on hard drives to increase storage efficiency. System administrators employ this technique to coordinate the various storage needs of numerous users.
