O-Zone Networks Interview Questions and Answers

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 that passes the automated tests to production without manua...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 collaboration between development and operations teams by providing a...read more

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 change.

• DevOps aims to automate the process of software delive...read more

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

• Jenkins

• Docker

• Ansible

• Kubernetes

• Git

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 reviews and audits for quality assurance

• Examples: Git, SVN, M...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 and processes