Last Updated: May 7th, 2018
If you're looking for DevOps Interview Questions for Experienced or Freshers, you are at right place. There are a lot of opportunities from many reputed companies in the world. According to research, DevOps has a market share of about 10%. So, You still have the opportunity to move ahead in your career in DevOps Engineering. Mindmajix offers Advanced DevOps Interview Questions 2018 that helps you in cracking your interview & acquire dream career as DevOps Engineer.
Q1: Difference Between DevOps & Agile?
|Devops Vs Agile|
|Testing Continously||Testing as early as often possible|
|Test Automates almost everything||Test automates as much as possible|
|Integration is continuous & testing is mandatory||Integration is continuous & testing steps forward|
|Potentially code shift after every integration||Potentially code shift at the sprint end.|
|It helps as the bridge between many cross-functional teams||The gap between these teams are bridged in daily scrum calls|
|Aligns Ops with stability||Aligns development with business priorities|
|Ops as deployment are just small part of ops.||It is the link b/n design thinking & DevOps|
Q2: What is the need for DevOps?
Many advantages of quick feedback from customers, better quality of software etc. which in turn leads to high customer satisfaction. To achieve this, companies are required to:
1. Increase deployment frequency
2. The lower failure rate of new releases
3. The shortened lead time between fixes
4. Faster mean time to recovery in the event of new release crashing
DevOps fulfills all these requirements and helps in achieving seamless software delivery. You can give examples of companies like Etsy, Google and Amazon which have adopted DevOps to achieve levels of performance that were unthinkable even five years ago. They are doing tens, hundreds or even thousands of code deployments per day while delivering world class stability, reliability and security.
Q3: What are the major Open Source DevOps Tools?
Here are the major devops tools using in the industry:
Q4: DevOps Toolchain:
Code — code development and review, source code management tools, code merging
Build — continuous integration tools, build status
Test — continuous testing tools that provide feedback on business risks
Package — artifact repository, application pre-deployment staging
Release — change management, release approvals, release automation
Configure — infrastructure configuration and management, Infrastructure as Code tools
Monitor — applications performance monitoring, end–user experience
Some categories are more essential in a DevOps toolchain than others; especially continuous integration (e.g. Jenkins) and infrastructure as code (e.g. Puppet).
Q5: What different types of testing need to be carried out on a software system, and what tools would you use to achieve this testing?
Well for starters, you probably would want to test that your configurations are correct before and after making changes. Maybe you should try out ScriptRock.
Q6: Explain your understanding and expertise on both the software development side and the technical operations side of an organization you’ve worked for in the past?
DevOps engineers almost always work in a 24/7 business critical online environment. I was adaptable to on-call duties and able to take up real-time, live-system responsibility. I successfully automated processes to support continuous software deployments. I have experience with public/private clouds, tools like Chef or Puppet, scripting and automation with tools like Python and PHP, and a background in AGILE.
Q7: Discuss your experience building bridges between IT Ops, QA and development?
DevOps is all about effective communication and collaboration. I’ve been able to deal with production issues from the development and operations sides, effectively straddling the two worlds. I’m less interested in finding blame or playing the hero than I am with ensuring that all of the moving parts come together.
Q8: What’s your career objective in your role as a DevOps engineer?
My passion is breaking down the barriers and building and improving processes, so that the engineering and operations teams work better and smarter. That’s why I love DevOps. It’s an opportunity to be involved in the entire delivery system from start to finish.
Q9: What testing is necessary to insure a new service is ready for production?
DevOps is all about continuous testing throughout the process, starting with development through to production. Everyone shares the testing responsibility. This ensures that developers are delivering code that doesn’t have any errors and is of high quality, and it also helps everyone leverage their time most effectively.
Q10: Listout the agile methodology of DevOps.
DevOps is a process
Agile is same as DevOps.
A separate group for are framed.
It is problem-solving.
Developers managing production
DevOps is development-driven release management
Q11: What are the advantages of DevOps?
Continuous software delivery
Less complex problems to fix
Faster resolution of problems
Faster delivery of features
More stable operating environments
More time available to add value (rather than fix/maintain)
Q12: What are the core operations of DevOps in terms of development and Infrastructure?
The core operations of DevOps:
Deployment With infrastructure
Q13: Which are the areas where DevOps are implemented?
IT Operations development
Creation of the production feedback and its development
Q14: What is the popular scripting language of DevOps?
Q15: Devops Tools Infographics:
Q16: How DevOps is helpful to developers?
To rectify the bug and implement new features quickly.
It provides the clarity of communication among team members.
Q17: What is DevOps engineer’s duty with regards to Agile development?
DevOps engineer work very closely with Agile development teams to ensure they have an environment necessary to support functions such as automated testing, continuous Integration and continuous Delivery. DevOps engineer must be in constant contact with the developers and make all required parts of environment work seamlessly.
Q17: Is continuous delivery related to the dev-ops movement? How so?
Absolutely. In any organization where there is a separate operations department, and especially where there is an independent QA or testing function, we see that much of the pain in getting software delivered is caused by poor communication between these groups, exacerbated by an underlying cultural divide. Apps is measured according to throughput, and ops is measured according to stability. Testing gets it in the neck from both sides, and like release management, is often a political pawn in the fight between apps and ops. The point of dev-ops is that developers need to learn how to create high-quality, production-ready software, and ops needs to learn that Agile techniques are actually powerful tools to enable effective, low-risk change management. Ultimately, we’re all trying to achieve the same thing – creating business value through software – but we need to get better at working together and focusing on this goal rather than trying to optimize our own domains. Unfortunately, many organizations aren’t set up in a way that rewards that kind of thinking. According to Forrester.
Here are the other DevOps courses offered by Mindmajix:
|List of Devops Courses|
|Build and Release Engineer||Jenkins|
|Chef DevOps||Octopus Deploy|
|Continuous Integration||Git & GitHub|
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