Extio Technology and Consulting LLP Devops Engineer Interview Questions, Process, and Tips

DevOps focuses on collaboration between development and operations teams, while agile methodology is a software development approach.

• DevOps is a cultural shift that emphasizes collaboration, communication, and integration between software development and IT operations teams.

• Agile methodology is a software development approach that focuses on iterative development, customer feedback, and flexibility in responding to cha...read more

Some popular DevOps tools include Jenkins, Docker, Ansible, Kubernetes, and Git.

• Jenkins

• Docker

• Ansible

• Kubernetes

• Git

Continuous delivery focuses on automating the software delivery process up to the production environment, while continuous deployment goes a step further by automatically deploying every change to production.

• Continuous delivery ensures that code changes are always in a deployable state, ready to be released to production at any time.

• Continuous deployment takes the automation further by actually deploying every change t...read more

Configuration management in DevOps involves automating the setup and maintenance of infrastructure and applications.

• Ensures consistency in infrastructure and application configurations across different environments

• Automates the process of provisioning, configuring, and managing servers and applications

• Helps in tracking changes made to configurations and rolling back to previous versions if needed

• Facilitates collaborati...read more

Some important DevOps KPIs include deployment frequency, lead time for changes, mean time to recover, and change failure rate.

• Deployment frequency: How often code is deployed to production

• Lead time for changes: How long it takes for code changes to go from commit to production

• Mean time to recover: How quickly the system can recover from failures

• Change failure rate: Percentage of changes that result in failure

IaC is implemented using AWS through tools like CloudFormation, Terraform, and AWS CDK.

• Use AWS CloudFormation to define infrastructure as code using JSON or YAML templates

• Utilize Terraform to provision and manage infrastructure using declarative configuration files

• Leverage AWS CDK to define cloud infrastructure using familiar programming languages like Python or TypeScript

Version control allows for tracking changes, collaboration, reverting to previous versions, and maintaining code integrity.

• Facilitates tracking changes made to code over time

• Enables collaboration among team members by providing a centralized repository

• Allows for reverting to previous versions of code in case of errors or bugs

• Helps maintain code integrity and consistency across different environments

• Facilitates code rev...read more

Anti-patterns of DevOps are common practices that hinder the successful implementation of DevOps principles and practices.

• Lack of collaboration between development and operations teams

• Manual and error-prone deployment processes

• Silos within the organization leading to lack of communication and sharing

• Failure to automate repetitive tasks

• Ignoring monitoring and feedback loops

• Focusing solely on tools rather than culture an