DevOps Interview Questions Preparation Course

DevOps delivers faster release velocity and a shorter design to deployment cycle, with confident deployments, quick rollbacks, early defect detection, and stronger collaboration for high performance teams.

Discover a DevOps workflow: write requirements and create tasks, check in code, build with Jenkins, publish artifacts, deploy to production, and monitor with Splunk while tracking issues in Jira.

Explore deploying with Amazon Web Services through infrastructure as code, using cloudformation templates, opsworks for configuration management, and ami images to automate scalable deployments across servers.

Discover how to automatically run a script on git commit using hooks, including client-side and server-side post-commit hooks stored in the hooks directory, with workflow and email script examples.

Explore aws opsworks stacks features, including automated operational tasks, hybrid cloud and data center support, scalable automation with configuration as code, dashboards for monitoring, and universal application support.

Learn how CloudFormation uses templates to describe resources like S3 and Dynamo NDB, builds a stack, and deploys them automatically. Reuse the same template to create multiple environments.

Learn how continuous integration and continuous delivery complement each other to enable automated deployment, rapid feedback, and quick delivery of small changes to production.

Explore how Chef automates infrastructure as code for cloud and data center deployments, enabling multi-cloud and hybrid environments, high availability, and cost-efficient operations.

Explain the chef architecture, detailing client-server interactions, the chef manage web console, load balancing, and the bookshelves that store versioned cookbooks, with shelflines as the nodes in the deployment.

Discover what a recipe in Chef is: a fundamental Ruby-based collection of resources and patterns stored in a cookbook, with defined execution order across recipes.

Explore the main benefits of Ansible for automation in both small and large deployments, including faster delivery, increased productivity, simplified tasks through human-readable playbooks, and focused problem solving.

Discover the main use cases of Ansible, including deployment, configuration management across environments, continuous delivery, security and compliance, provisioning, and orchestration.

Docker Hub is a cloud-based registry that hosts repositories, builds and stores images, and enables image discovery, distribution, and management for efficient Docker workflows.

Explore how to choose the right scripting language for DevOps automation, from bash on Unix to Python, Groovy, and Ruby for tasks, noting that no single language fits all scenarios.

Explain the Kubernetes architecture, detailing the master node that manages the cluster and worker nodes, with scheduling and maintaining desired state, plus scaling and upgrades.

Kubernetes maintains high availability in a cluster by using a deployment controller to monitor multiple nodes and automatically restart failed nodes, keeping applications up with minimal downtime.

Automate testing to enable high-frequency production releases in DevOps, validating unit, integration, and regression tests that catch defects early and protect existing functionality.

Use Jenkins to create automated test scripts, define a testing strategy with unit and integration tests, and plug them into the build process to ensure quality and faster production deployment.

Highlight AWS core services used in devops: EC2 for compute, S3 for storage, NoSQL databases for scalable data, CloudWatch for monitoring, and SNS for notifications.

git offers a distributed, open-source version control model with local branches and offline work, unlike cvs's centralized workflow, enabling scalable collaboration.

Compare containers and virtual machines, noting that VMs run full operating systems with higher security, while containers are lightweight, share the host OS, and expose minimal APIs to apps.

Explore how serverless architecture relies on third-party services and cloud providers to run code without managing servers. Learn about function as a service like lambda, scalability, and cost efficiency.

Explore the five DevOps principles—incremental releases, automation, collaboration, iterative improvement, and self-service—and how they form a unified development and operations approach that reduces time to market.

Discover how organizations balance dev and operations, navigate maturity levels, and incrementally adopt DevOps practices to deliver business value while managing ongoing operations.

Learn what a rest service is, a lightweight service using presentational state transfer, accessible over the satb protocol, enabling flexible, scalable architectures by composing small services.

Learn the three ways of DevOps: systems thinking to map end-to-end work flow, feedback loops for faster production feedback, and continuous learning to drive ongoing improvements and automation.

Apply DevOps principles to secure the system through automated security testing, penetration testing, and security checks, supported by security policies, training, and a standard deployment process that has been audited.

Explore self-testing code as a DevOps practice where development and operations collaborate, writing tests before or alongside code to catch production issues and prevent regressions.

Container-based systems isolate applications into separate containers with controlled resources and ports, enabling transient, repeatable deployments and easier security patching.