Popular Linux Interview Questions for DevOps Interviews

EXCELENT, thank you!

What storage q&a vmware

Ugh. This videos all over the place. Also, don’t say cuddle in an interview.

Excellent content 👌🏾

Thanks!

Good q's ....... ideal DevOps Manager.

Very helpful video..... 😍😍

what is the most valued Linux Sys Admin certificate ?
thanks!

im in this for 15 years and never touch inodes
I was forget what it is
do not touch there

the only thing i understood is mv ls cd dir

How would you poke around /proc to see what the command was called with?

system-cuddle
i say SystemCTL, nowdays i use service or rc-service because systemd has some drawbacks

interesting video

I had a interview yesterday, and i watched this video prior to my scheduled time, and they asked me one of the question that was here, so i started laughing, and they asked what is the problem, and i said that i watched this video day before lol :D Atmosphere was quite good, so it wasn't weird :D

/proc is fun and all but when you get into /sys (the sysfs) then things start to get interesting...
cause that's where all the knobs and switches are.
The virtual directory /proc was never really intended as an interactive system, only to be read for process information.
sysfs (sys/) is where the drivers can expose their tuning parameters and where platform classes and buses are enumerated.
Thanks for the example questions.
Cheers,

Again, I wanted to say thanks. I worked as a Linux sysadmin in the mid 90's to 2000, and I'm knocking off the rust now.. ..learning git, etc.
Tnx again.

Thank you so much for sharing this!

How traceroute works?
What are signals in Linux?
How kill command works in Linux?
How passwd command works with permissions 400 on passwd file?
How you identify if particular device have filesystem on it or not?

These are some interesting questions I love answering or asking to gauge Linux knowledge..

Liked. Subscribed.

Linux is such a vast system that even after 5y of being developer I still have 'no idea' what I'm doing. Are there any courses/materials/books that you would recommend to up my linux game a noch?

More interview tutorials. Thanks a lot ☺️☺️

If I interview someone and the person saying cuddle over and over again. I am sorry but you ain’t getting the job.

I mean ffs just say C T L like literally every other person on the planet.

The one I was asked which I didn't expect was: If someone changed the permissions on the CHMOD file. How do you change it or fix it.

SYSTEM CUDDLE?? System needs a hug

King! Interesting questions to listen to indeed :)

You dont have to grep for ESTAB using ss, you can filter on state = established

Thanks for the video !!
Still have a lot to learn but i think am in a good way !! ;)

Total time waster wasted MY17 minutes...too many AAAAHHH, ridiculous..NOT helpful at all

Hey thanks for the video! I've been preparing for interviews and I found this to be a super helpful tool. I'm a recent college graduate who has some experience working in operations via internships, I guess you would call me a Linux Admin/ Operations Engineer? The roles were never to well defined. Since working in the industry I've loved Linux but never had to the chance to formally learn it (only really learned it in the field just working with it). Do you have any advice on learning linux aside from just playing with it? I often find myself getting stuck on the nitty gritty questions like how does proc work, How does linux even know to boot up, Grub, disk mounting, PIDs, UIDs, GIDs, jailing. Ideally I'd love to read a book or do a course that teach such concepts, any advice is appreciated!

Hey man your videos are great I'm using them to prepare!

I've ditched Windows years ago and I'm using Linux 24/7, to me it was the most interesting when I didn't know something that is even basic lol
Also I kinda got scared of inodes and the implementation part

Inodes are the file. Not just a data structures

How inodes works. Great question.

Probably one of the best Linux interview questions!!! thank you very much!

also we need to know how to patch a Linux system like Redhat, SuSE, Ubuntu etc.

and we need to know how to create a patch repository

After seeing this, I decide to give up the DevOps track.

thank you

Just a hunch, but I have a feeling Dave has worn out a keyboard or two in his computing career. lol

Shoot, I was hoping one of the questions would be; "If you were a tree, what kind of tree would you be?" I was ready for that one! (A Mighty Oak - btw) :-D

Thank you very much for helping out the community. I feel also more a dev than sysadmin, but your knowledge of troubleshooting is really extensive. I become worried that I've never heard about journalctl, but that's because in my youth I've only inspected /var/log/*. I never had to resort to doing any tcpdump in practical work, and so also netcat is not that useful, compared to debugging power of curl.

I hope that if you see someone sees ways around linux in general, he/she would pass. At some point during lazy studing days, I've built Gentoo from scratch. I knew ways around that beauty, but I'm really lost in RHEL now. Like the damn LVM and allocating volumes for docker images....

I got these 2 questions on my last Linux interview:

1) How to delete a file which is zero bytes and its name is -xf? This really pissed me off because you never has files with special characters and with zero bytes.....I mean you can go an challenge someone with systems but this question...Pleaae...and this one you can figure out quickly if they give you a console to try, but with with pen and paper no straight forward.

2) What is chroot for and provide an example? This one is very good and they caught off guard, well good lesson to learn.

SYSTEMCUDDLE LMAO

if you have to use ssh, its not devops

The video by itself is pretty good, just casually talking about a distribution and some specific Linux stuff.
But if you called me up to talk about a interview and asked me these questions, i would think "is this guy serious?". What job level are we talking about here, support? 1'st / 2'nd level? something else?


A Linux interview question i have been given that i thought was strange (something like)
1. How do you aggregate and count identical lines in a file represented by a integer.
cat file.txt|sort|uniq -c
2. By reading this output from Apache webserver, what is a probable cause that the service wont start?
Given 3 A4 paper's with output.
3. What is the biggest mistake you've ever made on a server?
If anyone out there get such a question, have the balls to ask "what is the biggest mistake you've ever made?" and wait for them to move on.

Hi What is the best Linux course and what study material do you recommend.?

A few questions that I see are missing, and I use quiet often:
1. How would you automate the execution of a daily script (expect to hear cron).
2. You want to check the logs for an apache / nginx server, but you cant find them in /var/log/, where would you look (expect to hear how to identify where apache / nginx is installed, and check into their configs, where the logs are going)
3. How would you access a web service running in server B only accessible from server A, to which you have access, but from your local machine (expect to hear ssh tunnel using port forwarding -L or proxy socks -D).
Great video though, I need to improve my skills on /proc and inodes, I only heard of those things, but have never dig into. Thanks!

More than DevOps this are sysadmin questions

Sir , can you help me with a problem that i can not find the way out. I had an old hp laptop that i installed kali linux , but in the process of installation it doesn't recognize my network(wifi) and i skip the step. Now i have the linux running perfect in the laptop but i can't figure out how to connect the laptop on internet. Thanks in advance , i know is a noobie question but i am stuck. Thanks for your help

Now my question is how I find such interviews. Based off what I do day to day I would say I would nail your interview. I’m looking to move to a more Linuxy job but they all say “you need 3 years of Docker and Security+ and and”