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DevOps

100 DevOps interview questions

Only coding challenges
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DevOps Fundamentals


  • 1.

    What is DevOps and how does it enhance software delivery?

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  • 2.

    Can you describe the key principles of DevOps?

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  • 3.

    How do continuous integration and continuous deployment (CI/CD) relate to DevOps?

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  • 4.

    What are the benefits of DevOps in software development and operations?

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  • 5.

    Can you explain the concept of “Infrastructure as Code” (IaC)?

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  • 6.

    What is meant by “Shift Left” in DevOps?

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  • 7.

    How does version control support DevOps practices?

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  • 8.

    What role does automation play in DevOps?

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  • 9.

    What are the common metrics used to measure DevOps success?

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  • 10.

    How does DevOps differ from the Agile methodology?

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Tools and Technologies


  • 11.

    What are some popular tools used in the DevOps ecosystem for version control?

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  • 12.

    Can you list some CI/CD tools commonly used in DevOps?

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  • 13.

    What containerization technologies are commonly used in DevOps?

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  • 14.

    Name some configuration management tools used in DevOps.

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  • 15.

    What monitoring tools are popular in DevOps?

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  • 16.

    Describe the role of a tool like Docker in a DevOps environment.

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  • 17.

    What are orchestration tools and can you give examples?

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  • 18.

    Are there any cloud platforms that align well with DevOps, and can you name them?

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  • 19.

    How do you manage logging in a DevOps environment?

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  • 20.

    Explain the use of a tool like Jenkins or GitLab CI in the CI/CD pipeline.

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Continuous Integration and Continuous Deployment (CI/CD)


  • 21.

    Can you describe the CI/CD pipeline and its stages?

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  • 22.

    How do you manage branching strategies for CI/CD?

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  • 23.

    What is blue-green deployment?

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  • 24.

    How does a canary release differ from blue-green deployment?

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  • 25.

    What are the best practices for setting up a CI/CD pipeline?

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  • 26.

    What challenges might you face in implementing CI/CD and how would you overcome them?

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  • 27.

    How do you ensure CI/CD pipelines are secure?

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  • 28.

    Discuss the role of automated testing in CI/CD.

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  • 29.

    How can containerization be leveraged in a CI/CD pipeline?

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  • 30.

    How do you roll back a deployment in a CI/CD process?

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Infrastructure as Code (IaC)


  • 31.

    What is Terraform and how is it used in IaC?

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  • 32.

    Can you describe the functionality of AWS CloudFormation?

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  • 33.

    Explain the differences between declarative and imperative approaches in IaC.

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  • 34.

    What are the benefits of using IaC in a cloud environment?

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  • 35.

    What is a “stack” in the context of IaC, as seen in tools like Terraform?

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  • 36.

    How do you handle configuration drift?

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  • 37.

    Describe idempotence in the context of IaC and its importance.

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  • 38.

    What are some security best practices for IaC?

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  • 39.

    How do you test infrastructure code?

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  • 40.

    What is the significance of using modules in IaC tools?

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DevOps Testing


  • 41.

    What is test automation and how does it fit into DevOps?

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  • 42.

    Can you name some methods or practices for ensuring code quality?

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  • 43.

    How does DevOps influence Quality Assurance (QA) practices?

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  • 44.

    Explain the concept of “test-driven development (TDD)” within DevOps.

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  • 45.

    What are service virtualization and its relevance to DevOps?

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DevOps Monitoring and Logging


  • 46.

    What is Application Performance Monitoring (APM)?

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  • 47.

    How do you ensure effective log management in a DevOps setup?

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  • 48.

    What is the significance of time-series databases in monitoring?

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  • 49.

    How would you set up an alerting system for your applications?

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  • 50.

    Discuss the role of dashboards in DevOps monitoring.

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DevOps Security (DevSecOps)


  • 51.

    What is DevSecOps and how does it integrate with DevOps?

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  • 52.

    How can you implement security scanning within CI/CD pipelines?

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  • 53.

    What are security considerations when working with Docker and Kubernetes?

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  • 54.

    How do you manage secrets in a DevOps workflow?

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  • 55.

    What is the importance of compliance and governance in DevOps?

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Cloud Services and DevOps


  • 56.

    How do cloud services facilitate DevOps practices?

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  • 57.

    What are some of the DevOps-friendly features of AWS?

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  • 58.

    Can you describe the use of managed Kubernetes services such as EKS, AKS, or GKE?

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  • 59.

    How do serverless architectures fit into DevOps?

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  • 60.

    Explain how you would use cloud storage services within DevOps.

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Containerization and Orchestration


  • 61.

    What is Kubernetes and what problem does it solve?

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  • 62.

    How does a container differ from a virtual machine?

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  • 63.

    What is the purpose of a Kubernetes pod?

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  • 64.

    Explain the role of service discovery in container orchestration.

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  • 65.

    How can you scale containers using Docker Swarm or Kubernetes?

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DevOps Practices and Methodologies


  • 66.

    How does pair programming fit into DevOps culture?

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  • 67.

    Can you describe the concept of a blameless postmortem?

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  • 68.

    What is meant by “systems thinking” in the context of DevOps?

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  • 69.

    How can DevOps practices reduce technical debt?

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  • 70.

    What is ChatOps and how can it support DevOps initiatives?

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Advanced DevOps Concepts


  • 71.

    What are microservices and how do they influence DevOps?

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  • 72.

    Can you outline the benefits and challenges of a microservices architecture?

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  • 73.

    How does feature flagging work and why is it useful in DevOps?

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  • 74.

    What is a service mesh and how does it fit into a DevOps environment?

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  • 75.

    Describe the concept of immutable infrastructure.

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Soft Skills and Culture


  • 76.

    How would you foster a DevOps culture in a traditionally siloed organization?

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  • 77.

    What soft skills are important for a DevOps engineer?

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  • 78.

    How do you communicate and collaborate effectively within a DevOps team?

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  • 79.

    Can you explain the importance of empathy in a DevOps context?

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  • 80.

    How do you stay up-to-date with DevOps practices and tools?

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DevOps Challenges and Problem-Solving


  • 81.

    How do you address resistance to DevOps transformation within a team or organization?

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  • 82.

    What steps would you take to resolve a conflict between development and operations teams?

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  • 83.

    How would you deal with a failed deployment?

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  • 84.

    Describe how you would handle a significant system outage.

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  • 85.

    What is your approach to root cause analysis in a DevOps context?

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DevOps Case Studies and Experience


  • 86.

    Can you share an example where DevOps helped to improve software delivery?

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  • 87.

    Describe a DevOps project you worked on and the value it added.

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  • 88.

    What lessons have you learned from a DevOps implementation that didn’t go as planned?

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  • 89.

    How have you contributed to reducing release times or improving release quality?

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  • 90.

    Share an experience where you automated a significant manual process.

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DevOps Trends and Innovation


  • 91.

    Where do you see the DevOps movement heading in the next few years?

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  • 92.

    How do you think AI and machine learning will impact DevOps?

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  • 93.

    What is GitOps and how might it shape future DevOps practices?

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  • 94.

    Can you discuss the emerging concept of NoOps?

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  • 95.

    How could blockchain technology potentially be used in DevOps?

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DevOps for Databases


  • 96.

    How do you apply DevOps practices to database management?

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  • 97.

    What are the considerations for database version control?

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  • 98.

    Can you discuss the tools and strategies for database CI/CD?

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  • 99.

    How does database schema change management fit into DevOps?

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  • 100.

    What is the significance of database release automation?

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