Top 16 Most Common DevOps Interview Question and Answers
DevOps is one of the famous buzzwords in the tech world now, but this is much more than buzz. DevOps stands for development and operations. It is the collaboration between the development team & operations team for the purpose of automating the project at every stage and delivering it efficiently.
In the past few years there has been a significant increase in the requirement of DevOps engineers and that too in multinational companies like Google, Facebook, Amazon.
However if you are preparing to get the job then you need solid preparation. Because the market is very competitive. First step to face any company is an interview and you should be well prepared. Here are some of the most common DevOps interview questions and answers that can help you while you prepare.
Top DevOps Interview Questions and Answers
List of some of the most common devops interview questions and answers for freshers and devops interview questions and answers for experienced.
Q. 1 What is DevOps?
DevOps is a collaboration of development and operations teams. You can also explain here the growing importance of DevOps in the IT industry. It helps to accelerate the delivery of software products with a minimal failure rate.
In this practice development and operations engineers join hands throughout the product or service lifecycle, right from the design stage to the point of deployment.
Q. 2 What are the key principles behind DevOp?
The key principles behind DevOps are:
- Infrastructure as code
- Continuous deployment
- Automation
- Monitoring
- Security
Q. 3 What is the significance of having configuration management in DevOps?
Configuration management (CM) helps the team in the automation of time-consuming and tedious tasks thereby enhancing the organization’s performance. It also helps in bringing consistency and improving the product development process.
Q. 4 What does the CAMS stand for in DevOps?
It stands for Culture, Automation, Measurement, and Sharing. It shows the core deeds of DevOps.
Q. 5 What are the core benefits of DevOps?
There are technical benefits and business benefits. Technical benefits are Continuous software delivery, Less complex problems to manage, Early detection and faster correction of defects.
Business benefits are Faster delivery of features, Stable operating environments, Improved communication and collaboration between the teams.
Q. 6 What is CI?
Continuous interaction (CI) is a software development practice which makes sure developers integrate their code into a shared repository as & when they are done working on the feature.
Every integration is verified by an automated build process which allows teams to detect problems in their code at an early stage so that they can correct it rather than finding them after the deployment.
Q. 7 What is the importance of continuous integration?
Using CI for both development and testing, it has found that the software quality is improved and the time taken for delivering the feature is reduced significantly.
Q. 8 What are the three main DevOps KPIs?
The important KPIs are as follow:
- To reduce the average time taken to recover from a failure.
- To Increase Deployment frequency in which the deployment occurs.
- Reduction in Percentage of failed deployments.
Q. 9 What do you know about post mortem meetings in DevOps?
If certain things go wrong while implementing the DevOps methodology then the Post Mortem meetings are arranged for the discussion purpose.
In this meeting the expectation is that the team has to arrive at steps that need to be taken in order to avoid the failures in the future.
Q. 10 Which are the most popular DevOps tools?
Below are most popular listed tools:
- Jenkins: Continuous Integration tool
- Git: Version Control System tool
- Puppet: Configuration Management and Deployment tools
- Docker: Containerization tool
- Nagios: Continuous Monitoring tool
- Ansible: Configuration Management and Deployment tool
Q. 11 How can we create a backup and copy files in Jenkins?
To create the backup Periodically backup your JENKINS_HOME directory, whic contains slave node, contains job configurations and all the build history. Now to create a backup of your Jenkins setup, just copy this directory.
Q. 12 What are the top Jenkins plugins?
There are many plugins in jenkins, below is the list of some of the top plugins:
- Performance plugin
- Kubernetes plugin
- Dashboard view plugin
- Amazon ECS Container Service
- Git plugin
- Monitoring plugin
Q. 13 Is it possible to build multiple jobs at a time using Jenkins?
Yes, it is possible to build multiple jobs at the same time using Jenkins. After the parent job is implemented, other jobs are automatically implemented.The pipeline multibranch plugin is used for creating a job automatically.
Q. 14 What do you know about automation testing?
It is a software testing technique. By using automation testing we can automate the testing tasks and repetitive tasks that are difficult to perform manually.
Q. 15 Which are the best continuous testing tools?
Below are the best continuous testing tools:
- Katalon Studio
- Selenium
- Eggplant
- Watir
- Tosca
Q. 16 What is Memcached?
It is an open-source and free in-memory object caching system. Memcached has high performance and it is distributed and generic in nature. The main use of this is to speed the dynamic web applications by reducing the database load.
Cyber Success – Best DevOps Course in Pune
Cyber Success is one of the most renowned and trusted professional IT training institutes in Pune. They are relentlessly working to shape efficient software engineers for tomorrow.
No doubt that businesses all over the world are rapidly adopting DevOps-related technologies and practices. So the DevOps professionals are in high demand.
So if you are looking for the best DevOps course in Pune, cyber success is the place for you. Below are some of the course benefits which will make you ready to stand strong in the competition:
- You will be able to learn how to apply the DevOps concept to the SDLC.
- DevOps coaching amid compact batch size and flexible timings.
- Very important, Gain hands-on experience by working on a live project.
- Mentored By Industry Leaders
- Get hold of an array of course material to reinforce your basics.
- Acquire all the necessary skill sets to score high in the field of DevOps
- Curriculum designed by industry experts
- Advance from the basic
- 100% placement assistance
Related Reading: DevOps vs Full Stack Developer
