
Are you looking for a complete set of DevOps interview questions covering all basic questions asked during interviews especially for freshers. DevOps is a rapidly growing branch working based on agile methodologies bridging the gaps and bottlenecks between the operations (IT) and the development team (Dev).
If you want to build your career in DevOps then you must be familiar with the basics of DevOps and its fundamentals on which it works. This blog will take you through some of the most important devOps interview questions with answers.
As a DevOps engineer freshers can get hands on learning exposure in development, deployment, testing, CI/CD, infrastructure, and monitoring helping you become a complete package by mastering the core engineering skills. You will also be learning in demand tools such as Kuberentes, Jenkins, Cloud platforms and more.
A DevOps engineer does not need to be a master at programming but must be familiar with it along with Linux, networking, shell scripting, Git, and others. DevOps combines development, operations, automation, cloud, scripting and more which can be overwhelming at start but getting familiar with in-demand skills and building a career out of it might be the best choice. Read this blog to get a wide range of DevOps interview questions along with answers for each.
Beginners must practice solving devOps interview questions to strengthen their concepts of the basics of devOps along with its tools and framework. Below we have handpicked frequently asked DevOps interview questions and answers.
Q1. What is DevOps?
Ans: DevOps is an agile methodology approach which is used to bridge the gap between development (dev) and IT operations (ops) team. It makes the software development life cycle faster and provides continuous delivery with high quality of the end product.
It focuses on collaboration, automation, and integration with the dev and ops team to build, test and release software faster and in a more reliable manner.
Q2. Why is DevOps important?
Ans: DevOps is an approach which helps organisations deliver software products quickly and in a more reliable manner. It promotes continuous delivery and improvement with better team collaboration, speed, and fixtures of any error or bugs that come midway. DevOps reduces downtime, promotes continuous delivery and improvement based on users feedback. Practice a lot of devOps interview questions along with practice excercises to learn devOps and pass interview easily.
Q3. What are the key principles of DevOps?
Ans: The key principle of DevOps includes collaboration, continuous integration and Continuous delivery (CI/CD), automation, monitoring, and feedback loops. These principles help create a smooth and optimised SDLC pipeline where the entire process becomes smooth and safe based on real time feedback from users.
Q4. What is the difference between Agile and DevOps?
Ans: Agile is a methodologies which works based on iterative and incremental approach with high degree of clients collaboration. It is based on tight feedback loops and continuous improvement in product based on those feedback.
DevOps on other hand is a wider approach very similar to agile methodologies but focuses on automating and streamlining the entire software development life cycle with focus on continuous integration and continuous delivery. DevOps ensures that the entire production is faster and reliable while agile is based on speed and flexibility. It is one of the most frequently asked devOps interview questions.
Q5. What is CI/CD in DevOps?
Ans: CI/CD comprises two important processes i,e. Continuous Integration and Continuous Delivery. Continuous integration means frequently merging changes in code into a shared repository and testing them using automation.
Continuous delivery means to ensure that the code is always present in a deployable state. With CI/CD faster software delivery and significant reduction in error is possible.
Q6. What is version control and why is it important in DevOps?
Ans: Version control systems are used to track changes in code and allow multiple developers to collaborate and make changes/overwrite each other’s work.
In DevOps, version control is crucial for managing code, automating CI/CD pipelines, rollbacks, and more. Version control takes the snapshot which can be recalled later when needed.
Q7. What is Infrastructure as Code (IaC)?
Ans: Infrastructure as Code (IaC) is the practice of managing and provisioning infrastructure through code rather than using the manual processes.
Various tools like Terraform or AWS CloudFormation allow you to write infrastructure configurations that can easily be versioned, tested, and deployed like application code. This approach improves consistency, reduces errors, and enables automation in DevOps workflows.
Some of the most frequently asked DevOps interview questions are listed below. Make sure you practice these concepts for your next interview.
Q1. What are the key benefits of using DevOps?
Ans: There are a wide range of benefits of using devOps in modern software development practices.
Read More: How DevOps Works: Complete Explanation for Beginners
Q5. What is Jenkins in DevOps? Ans: Jenkins is an open source continuous integration and continuous delivery automation software in devOps tool written in java programming language used for building, testing, and deploying software projects and automating the entire CI/CD pipelines. Q6. Why is monitoring important in DevOps? Ans: In DevOps, monitoring is used for real time feedback and performance tracking which can help developers stay updated with the latest performance and issues in application. Some of the tools in devOps used for monitoring are Grafana, Prometheus, ELK stack, and more. Q7. What are the top programming languages important in DevOps? Ans: It is important to be familiar with top programming and scripting languages to build a successful career in devOps. Some of the top programming and scripting languages are Golang, Java, Ruby, Bash, Python, Powershell, and more. Q8. What is the blue/green deployment pattern? Ans: Blue deployment pattern is used to represent the current live version of the application that users are interacting with in real time. It is the stable version of the application that has already been tested and deployed on the platform. The green deployment pattern is where the new version of the application is deployed, tested and verified in a production based setting without any effect on live users. If there exists any issue in the environment it can be reversed back to the blue environment easily with minimal downtime. Q9. What is the difference between Agile and DevOps practice? Ans: Some of the major differences between Agile and DevOps practice are mentioned in the table below.| Agile | DevOps |
| Agile is a software development methodology focused on iterative progress. | DevOps is a culture and set of practices focused on automation and collaboration between development and operations. |
| It includes development and testing of software features. | DevOps comprises end to end software delivery including development, deployment, and operations. |
| It delivers small, functional parts of software quickly and frequently. | Deliver software reliably, frequently, and with automation. |
| Agile involves mainly developers and QA testers. | DevOps involves developers, QA, and IT operations together. |
| It iterates delivery in sprints. | It is based on Continuous integration and continuous delivery/deployment (CI/CD). |
| It focuses on feedback after each sprint. | It includes real-time feedback from production and monitoring tools. |
| It is limited to testing and build processes. | It is based on automating spans the entire pipeline – code, test, deploy, monitor. |
| Jira, Trello, Scrum, Kanban. | Jenkins, Docker, Kubernetes, Ansible, Terraform, AWS, Git, etc. |
| Emphasizes agile principles, customer collaboration, and flexibility. | Emphasizes collaboration, automation, and responsibility sharing. |
| Faster development cycles and quicker response to change. | Faster, more reliable deployments with minimal downtime. |
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