DevOps interview Questions

Posted by Christina Alpanda on December 24th, 2020

DevOps promotes communique and collaboration between commercial enterprise, development & operations groups. DevOps isn't handiest approximately gear however also approximately related to human beings and procedures. DevOps is inspired with the aid of the Agile technique. DevOps is about automating the development, release and operation methods.

One amusing thing to do is to pick out a subject and ask a friend to pick out another topic, then spend 2 hours learning your subject matter earlier than coming lower back together for an hour or  to share. Take turns playing the jobs of interviewer and interviewee. Read the Google SRE Book. This is a must-examine e book for modern-day DevOps.

DevOps is not pretty much tools on my own but it is also a fixed of first-rate practices that allow us to bridge the distance between the improvement and operations teams in the areas of continuous integration and deployment via using an incorporated set of equipment to automate the software program transport.

Q #1) Explain DevOps.

Answer:

• DevOps promotes communication and collaboration between enterprise, development & operations groups. In a manner, we're speak me about unification.
• DevOps isn't most effective about gear however also approximately related to people and strategies.
• DevOps is inspired by means of the Agile manner.
• DevOps is about automating the development, launch and operation processes.
• DevOps helps inside the velocity of handing over applications to the stop-customers.
• DevOps is also about non-stop development which enables in learning via comments.

Q #2) Explain a few conditions which might be useful for DevOps implementation.

Answer: Pre-requisites includes:

• Commitment on the senior level in the business enterprise.
• Need for change to be communicated across the enterprise.
• Version manipulate software program.
• Automated gear for compliance to procedure.
• Automated Testing
• Automated Deployment

Q #3) What are the best practices for DevOps implementation?

• Answer: DevOps implementation varies from one organization to another company. Today corporations are seeking to deliver the software program faster and from that point of view here are my mind on how DevOps can result in green conversation with all of the stakeholders consisting of the operations group.
• Every agency has positive commercial enterprise desires and DevOps implementation should align with it. There need to be a certain want for exchange.
• Encouraging conversation and collaboration specially between development and operations.
• Automation is the important thing and should be finished and finished anyplace feasible within the SDLC levels to facilitate the working of DevOps.
• The gear used in DevOps should combine thoroughly. From the factor of view of any business tools like IBM Rational CLM or Microsoft TFS, the implementation of DevOps is ideal as it's far from a single vendor. Similarly, one needs to take a look at open-supply tools that combine to present similar desired consequences.
• DevOps implementation isn't a success with out Continuous Integration and Continuous Delivery practices.
• It could be very important for the Ops team to make certain that the packages are working very well at appropriate levels. If required they will want to paintings with the improvement groups to construct any equipment that might help to build the proper monitoring capabilities into the applications.
• Finally, encourage feedback from stop-customers to permit non-stop improvement which provides the key for improving the process and handing over satisfactory software.

Q  #4) What are the important thing components of DevOps?

Answer: Key components encompass:

• Continuous Integration
• Continuous Testing
• Continuous Delivery
• Continuous Monitoring

Q #5) Explain Continuous Integration.

Answer: Continuous Integration is a very important component of the Agile technique. Typically, builders work on capabilities or person stories inside a sprint and commit their adjustments to the model control repository.

Once the code is committed, then the complete paintings of builders is properly incorporated and the build is executed on a regular basis primarily based on every test-in or schedule. Hence, Continuous Integration as a practice forces the developer to combine their modifications with the others in an effort to get early feedback.

Q #6) Explain Continuous Delivery.

Answer: Continuous Delivery is an extension of Continuous Integration which primarily enables to get the capabilities that the builders are developing out to the cease-users as quickly as viable. During this process, it is going via numerous levels of QA, Staging, and many others., and then for delivery to the PRODUCTION gadget.

Q #7) Explain Continuous Testing.

Answer: From the above purpose of Continuous Integration which is to get the utility out to end-users are mostly enabling non-stop transport. This cannot be completed without a sufficient quantity of unit testing and automation testing.

Hence, we want to validate that the code produced and incorporated with all of the developers who carry out as required.

Q #8)Explain Continuous Monitoring.

Answer: As the application is advanced and deployed, we do need to display its overall performance. Monitoring is likewise very critical as it might help to find the defects which may not were detected earlier.

Q #9) How will you method whilst a assignment desires to enforce DevOps?

Answer: Following procedures may be used however so as to vary based at the actual assignment situations or from enterprise to company

• Stage 1: For any DevOps implementation, an assessment of the prevailing technique and implementation for around 2 to a few weeks taking a median of 5 programs is a ought to to gauge the AS-IS technique, identifies the development regions and offers a roadmap for the implementation.

Typically a senior profile like a DevOps architect should be worried to conduct this evaluation.

• Stage 2: A pilot POC can be finished to exhibit the cease to end working of DevOps. Once this has been standard and approved via the end-customers simplest then the actual implementation, handover and rolls out the plan for the projects worried should be performed.

Any pieces of education required can even need to be imparted to the manner or equipment. DevOps architects, engineers, and testers might want to be involved at this level.

• Stage 3: The tasks should now be in DevOps mode with all the additives of continuous integration/delivery/checking out and tracking that is being followed.

Q #10) Can DevOps be applied to a Waterfall method?

Answer: In the waterfall process, as everybody are aware to start with complete Requirements are gathered, next the System is designed, Implementation of the System is then achieved accompanied through System checking out and deployed to the give up-users. In this technique, the problem turned into that there has been a massive ready time for build and deployment which made it very hard to get the comments.

The method to the above hassle became that the Agile technique has to bring in agility in both improvement and operations. DevOps goes hand in hand with the Agile procedure.

The cognizance region is to launch the software program in a totally well timed manner with shorter release cycles and short comments. So, the agile procedure cognizance will especially be on velocity and in DevOps, it really works well with the automation of diverse tools.

At the start of this series of DevOps tutorials, we came to recognise what precisely is DevOps, its technique and sure feasible ways of imposing them.

The DevOps questions in this tutorial ought to with a bit of luck help you to triumph over the DevOps interview and set you up at the route of an outstanding career on this discipline. As the questions stated are from a DevOps perspective, you must also be talented within the Agile procedure

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