Top 50 DevOps Interview Questions with Answers
What is DevOps?
DevOps is a set of practices that combine software development (Dev) and IT operations (Ops) to shorten the systems development life cycle while delivering high-quality software to end users.
What is Continuous Integration?
Continuous Integration is a development practice where developers integrate code changes into a shared repository frequently, preferably several times a day. Each integration is verified by an automated build and automated tests to detect integration errors early.
What is Continuous Delivery?
Continuous Delivery is a software development practice where code changes are automatically built, tested, and prepared for release to production. The aim is to release software frequently, with high confidence and low risk.
What is Continuous Deployment?
Continuous Deployment is a software development practice where code changes are automatically built, tested, and deployed to production. The aim is to release software frequently, with high confidence and low risk.
What are the key benefits of DevOps?
The key benefits of DevOps are faster time-to-market, improved quality of software, increased efficiency, better collaboration between teams, and improved customer satisfaction.
What are the key principles of DevOps?
The key principles of DevOps are continuous integration, continuous delivery, continuous deployment, automation, monitoring, and feedback.
What are the different phases of DevOps?
The different phases of DevOps are Plan, Develop, Test, Release, Deploy, Operate, and Monitor.
What is Infrastructure as Code?
Infrastructure as Code (IaC) is a practice where infrastructure is managed using code and version control, allowing teams to automate the deployment and management of infrastructure resources.
What is Configuration Management?
Configuration Management is a practice where infrastructure resources are managed and maintained in a consistent and repeatable way, using tools and processes to ensure that configurations are consistent across all environments.
What is Version Control?
Version Control is a practice where changes to software and infrastructure are tracked and managed over time, allowing teams to collaborate and manage changes to code and configuration.
What is Git?
Git is a distributed version control system that allows developers to track changes to code and collaborate on code changes.
What is Jenkins?
Jenkins is an open-source automation server that provides hundreds of plugins to support building, deploying, and automating any project.
What is Docker?
Docker is a platform that enables developers to package and deploy applications in containers, which provide an isolated environment for running applications.
What is Kubernetes?
Kubernetes is an open-source platform for automating the deployment, scaling, and management of containerized applications.
What is Ansible?
Ansible is an open-source automation tool that allows teams to automate configuration management, application deployment, and other IT tasks.
What is Puppet?
Puppet is an open-source configuration management tool that allows teams to automate the deployment and management of infrastructure resources.
What is Chef?
Chef is an open-source configuration management tool that allows teams to automate the deployment and management of infrastructure resources.
What is Agile Development?
Agile Development is a software development methodology that emphasizes iterative and incremental development, collaboration between teams, and continuous feedback.
What is Scrum?
Scrum is an Agile framework for managing and completing complex projects. It emphasizes teamwork, collaboration, and iterative development.
What is Kanban?
Kanban is an Agile methodology that emphasizes visualizing work, limiting work in progress, and managing flow to optimize the delivery of value.
What is Lean?
Lean is an Agile methodology that focuses on delivering value to customers by eliminating waste and maximizing efficiency.
What is a User Story?
A User Story is a short, simple description of a feature or functionality that a user wants or needs.