The Best DeVops interview Questions 2018-Learn Now1

Q1: 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.

Q2: What are the major Open Source DevOps Tools?

Here are the major devops tools using in the industry:

Nagios (& Icinga), Monit, ELK, Jenkins, Docker, Ansible, GitHub, Vagrant, Continuous Delivery, Continuous Integration, Gradle, etc...

Q3: 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).
Source: Wikipedia

Q4: 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.

Q5: 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.

Q6: 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.

Q7: 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.

Q8: 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.

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