GKM IT Devops Engineer Interview Questions and Answers

It was of 75 minutes. And Questions are related from Quantitative, logical reasoning and Coding.

DSA Questions were asked there

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Q1. On Amazon Web Services
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Q2. On DEVOPS like Jenkins etc......
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Q1. What is Pipeline?
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Q2. What is the Jenkins and logs?
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Q1. What is CI/CD and how have you implemented it?
Ans. 
CI/CD stands for Continuous Integration and Continuous Deployment, streamlining software development and delivery processes.
• CI involves automatically testing and integrating code changes into a shared repository, e.g., using Jenkins or GitLab CI.

• CD automates the deployment of code to production, ensuring that new features are released quickly and reliably.

• Implemented CI/CD pipelines using tools like CircleCI, where cod...read more
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Q2. What is the difference between DOCKER and a virtual Machine?
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Docker uses containers for lightweight virtualization, while VMs use hypervisors for full OS virtualization.
• Docker containers share the host OS kernel, making them lightweight and fast.

• Virtual Machines (VMs) run a full OS, including its own kernel, which consumes more resources.

• Docker starts in seconds, while VMs can take minutes to boot up.

• Containers are portable and can run consistently across different environments,...read more
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Q1. How do you ensure high availability and scalability in CI/CD pipeline?
Ans. 
Implementing redundancy, automation, and monitoring ensures high availability and scalability in CI/CD pipelines.
• Use load balancers to distribute traffic across multiple CI/CD servers, ensuring no single point of failure.

• Implement container orchestration tools like Kubernetes to manage scaling and availability of CI/CD components.

• Utilize cloud services (e.g., AWS CodePipeline, Azure DevOps) that offer built-in high ava...read more
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Q2. What is CI and CD?
Ans. 
CI (Continuous Integration) and CD (Continuous Delivery/Deployment) are practices that automate software development and release processes.
• CI involves automatically testing and integrating code changes into a shared repository.

• CD ensures that code changes are automatically deployed to production or staging environments.

• Examples of CI tools include Jenkins, Travis CI, and CircleCI.

• Examples of CD tools include Spinnaker,...read more
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Q1. What is cloud?
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Cloud refers to on-demand computing resources and services delivered over the internet, enabling scalability and flexibility.
• Cloud computing offers three main service models: IaaS (e.g., AWS EC2), PaaS (e.g., Google App Engine), and SaaS (e.g., Microsoft 365).

• It provides scalability, allowing businesses to easily adjust resources based on demand.

• Cloud services can be public (e.g., AWS, Azure), private (dedicated infras...read more
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Q2. What is the Pipeline and Server?
Ans. 
A pipeline automates the software delivery process, while a server hosts applications and services.
• A pipeline consists of stages like build, test, and deploy, ensuring continuous integration and delivery.

• Example: A CI/CD pipeline using Jenkins to automate testing and deployment of a web application.

• A server is a physical or virtual machine that provides resources, data, services, or programs to other computers.

• Example:...read more
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Q1. How to ensure continuous integration and delivery in DevOps.?
Ans. 
Continuous integration and delivery in DevOps can be ensured through automation, collaboration, and monitoring.
• Automate the build, test, and deployment processes to ensure code changes are integrated and delivered quickly and consistently.

• Use version control systems to track changes and enable collaboration among team members.

• Implement continuous integration tools like Jenkins, Travis CI, or GitLab CI to automatically ...read more
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Q2. By automating build, test, and deployment processing using CI/CD pipelines.
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