Devops engineer Interview Questions

DevOps is a quickly growing space for tech companies. Employers hiring DevOps engineers are looking for candidates with strong programming abilities, a knowledge of re-engineering processes and great communication skills to fast-track projects between IT professionals and software engineers. Expect to answer various technical questions that will evaluate your knowledge of tech tools and processes such as HTTP. Experience in software engineering or a related field is expected.

5,240 Devops Engineer interview questions shared by candidates

Top DevOps Engineer Interview Questions & How to Answer

Here are three of the top questions asked in DevOps engineer interviews and tips on how to answer them:

Question No. 1: What are the top DevOps tools, and which ones have you worked with before?

How to answer: This open-ended question is designed to showcase your knowledge and experience with a variety of available DevOps tools. Share any tools you have specific experience with and how you have used them to develop good quality software. If you have generalised knowledge of many tools, you can easily refer to how to use them. If you have limited experience with DevOps tools, you can share that you specialise in those tools and how you have used them.

Question No. 2: What is the need for DevOps?

How to answer: This open-ended question allows you to demonstrate and communicate your knowledge of the advantages of using DevOps. This question also lets you share examples of companies who have used DevOps to achieve levels of performance that far exceeded expectations. You can attest to the benefits of DevOps and how these companies need it to continue to expand.

Question No. 3: What are the most important things that DevOps help achieve?

How to answer: This open-ended question is used to understand your perception of what is important when it comes to DevOps. Share the positive effects of DevOps and its relation to customer satisfaction, clearer communication and better collaboration. When possible, share examples from your previous experience that demonstrate these important aspects of DevOps.

Top Interview Questions

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Amazon
Devops Engineer was asked...15 September 2014

How do you know how much memory your java application is taking on Linux?

6 Answers

pmap or top is probably the simplest. Just be sure not to confuse virtual memory with physical. Less

jps |awk "{print $1}" | xargs -L 1 ps -ef -o %mem

ps aux | grep -i

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H2O.ai

A programming question ? Related to excel spread sheet. The question goes this way. columns will go infinitely : A , B.......................Z,AA,AB............AZ,AAA................ZZZZ so interviewer wanted me to choose a programming language of choice and pass the column name and print corresponding column number. A - 1 B- 2 Z - 26 AA - 27 1 + 26 AZA - 1 + 26 + 26 +

3 Answers

I tried solving it with python I gave some solution it didn't worked well.

public class Column { static int getColumnPosition(String cell) { int columnposition = 1; int row = 0; int j = 0; char[] cellAsArray = cell.toCharArray(); char column = cellAsArray[cellAsArray.length - 1]; for (int i=0; i = 'A' && letter <= 'Z') { letterPosition += 1 + letter - 'A'; } return letterPosition; } public static void main(String[] args) { int position = getColumnPosition("ZZ"); System.out.println("Position is " +position); } } Less

num = 0 for char in list('AZA'): num = num + ord(char) - ord('A') + 1 return num Less

Capital One

Are you willing to work on 3AM Production Support without hesitation ?

3 Answers

Yes

Yea

Yes

Intuit

How do you stay organized? Describe tools and techniques.

3 Answers

I use Outlook for email, contacts, calendar, and tasks in the work environment, and I use OneNote to collect and search through important notes. With my smartphone I use Google's calendar, gmail, and search. Less

Trello for managing/limiting work in progress; focusing on one task at a time. Don't use email at all if you can help it. Use Slack for team communication as it links with Trello effectively. Keep all of your code in GitHub and commit+push often to track changes. Don't be someone responsible for releasing software; be someone who enables teams to release via services or automation you provide. Work hard to keep from being a bottleneck or gatekeeper of environments. Don't keep secrets or build silos of knowledge. The mindset you adopt will enable you to uplift others and enable better communication across your team and organization. Less

Choose carefully what you put your attention on and resist the urge to multitask. Choose your top 2 or 3 skill areas and focus on cultivating them. Tools like Outlook are not helpful for DevOps. Shut it off for long periods of time each day. Less

Cloudreach

Describe the difference between TCP and UDP.

3 Answers

I described the difference between TCP and UDP.

Stateless and stateful..

Stateless and stateful..

Imgur

I was asked to to participate in several thought experiments. They were cleverly designed for you to showcase your skillset.

2 Answers

I really just provided honest input during the thought experiments, and this demonstrated my proficiency with the concepts and software involved in the thought experiments. Less

Through questions like this, interviewers are mostly trying to test your skillset (and its relevance to the role) as robustly as possible, so be prepared for multiple offshoots and followups. It could be a useful exercise to do mocks with friends or colleagues in Imgur to get a real sense of what the interview is actually like. Alternatively Prepfully has a ton of Imgur Senior DevOps Engineer experts who provide mock interviews for a pretty reasonable amount. prepfully.com/practice-interviews Less

Imgur

If you could have one superpower...

2 Answers

Be clever when responding. Whether it's the ability to fly, see into the future or leap over tall buildings in a single bound, you should always make a connection to your professional contributions. The superpower you choose need to relate back to an organization or how your skills would benefit others. For example, the ability to read someone's mind can help you create better solutions for a client. Less

Meh. These questions always freak me out a little bit. I don't think it was considered seriously, instead looking for someone with a little bit of life in them. Typical programmer trap though - flying is a subset of teleportation :P Less

Imgur

How would you design a presence (ie: friends online list) system?

2 Answers

K/V stores, queues, distributed systems, etc etc. If you don't have an opinion on this, you haven't been on-call for a chat system before :P Less

In these sorts of interviews you really need to drill down and understand what the interviewer is looking for. A good way to simulate a real interview experience is to do a mock with one of the Imgur Devops Engineer experts on Prepfully, rated super strongly on TrustPilot... prepfully.com/practice-interviews Less

CloudCover

Interview question were fair with modern technical question for the Devops profile.

2 Answers

After completing all the 3 rounds. they told me that they've a cultural check round. which infact was more like a technical discussion again. And finally HR mailed saying you've passed all the tests and discussed about CTC process and asked for the formal documents. Then the process of regular follow-up starts. And HR told me they want to have one more hangouts round which never happened. Less

Yes....I have the same experience .they are not sure of how many rounds should they have . And how to conclude. They lack aquisition process Less

Elinvar

How can you have 3 usable IPs in a /30 subnet

2 Answers

cancel the BC and use MAC table

32-30=2, 2^2=4, 4-2=2, the answer is no, max. 2 addresses

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