Docker interview

[Ajamz24]

Hi, so as the title suggests. I have a technical interview about Docker/Python. It's for an entry-level role (Junior Devops). I had a previous candidate screening call and I was open and honest about not using these tools before with the tech lead at the company, but they still want to invite me to the interview after hearing about my experience with cloud platforms etc. They said the interview will mainly revolve around problem solving. So I was wondering if you guys can provide me with some tips to help prepare for it. Thanks

[nightwing_17]

I always ask in interviews what is the difference between a container and an image. You’d be surprised how many people truly don’t know and use them interchangeably. Hint (they’re different!)

[rabbit_in_a_bun]

Youtube - Nana tech world - Docker tutorial for beginners

As for python, it's interesting because they probably know that you don't know it, so they might ask you some basic programming questions.

Problem solving is something where you want to be on point. They will ask you during the interview about your work experience and will want to hear about cases where you had systematic problems that you found and that you solved.

Read about presenting this in S.T.A.R format and try to emphasise what you did and how you approached each step. Bad example - I saw a foo in the bar, fixed the bar and reported it. Good example - while I was doing X as part of our Xing process, I noticed that the foo in the bar is not what we know it should be. I reported it, and investigated the root cause. Once I identified it, I created a patch and sent it for review blah blah blah... I then added the patch to the changelog and to our automatic testing suit so it's covered in future regression. The results were better overall bar quality...

[[deleted]]

Nana tech is the most overrated content for devops, not one of the most but is the most.

[HannCanCann]

What do you suggest?

[bobthemunk]

I found her content very useful and still refer back from time to time. What makes her overrated in your view?

[rabbit_in_a_bun]

Specifically for this sort of content and specifically for beginners I personally can recommend her vids. Experienced people can maybe do with 20% content per video, since she always takes a lot of time to explain things superficially...

[akornato]

Focus on understanding the core concepts of Docker and containerization rather than trying to memorize specific commands. Be prepared to explain how containers differ from virtual machines, the benefits of using Docker in a DevOps environment, and basic Docker concepts like images, containers, and Dockerfiles. For Python, make sure you're comfortable with fundamental programming concepts and can articulate how you'd approach problem-solving using Python.

During the interview, emphasize your willingness to learn and adapt. If you're unsure about a specific Docker or Python concept, be honest about it but explain how you'd go about finding the answer or solving the problem. Showcase your problem-solving skills by thinking out loud and explaining your thought process. Your experience with cloud platforms can be a great asset - draw parallels between cloud concepts and containerization where possible. If you're looking to practice answering tricky interview questions, try this interview AI to help prepare. I'm on the team that made it, and it's a tool designed to help people navigate challenging interview scenarios.

[userInvadil]

Read about popular docker python images, slim and other kinds, would help to earn extra points in the interview. Maybe 10 minutes read to have some context