10+ AWS Cloud and DevOps Engineer Interview Questions and Answers

PV and PVC in Kubernetes are used to provide persistent storage for stateful applications.

• Persistent Volume (PV) in Kubernetes is a piece of storage in the cluster that has been provisioned by an administrator.

• Persistent Volume Claim (PVC) is a request for storage by a user or pod in the cluster.

• PVs and PVCs decouple storage from the pod, allowing for easier management and scaling of stateful applications.

• PVs can be dynamically provisioned or statically provisioned, depending...read more

Helm is a package manager for Kubernetes that simplifies application deployment and management.

• Helm allows users to define, install, and upgrade complex Kubernetes applications with ease using charts.

• It helps in managing dependencies, configurations, and versions of applications in Kubernetes.

• Helm enables sharing of applications through public or private repositories, promoting reusability and collaboration.

• It provides a templating engine to customize configurations for diffe...read more

Rolling updates and rollbacks in Kubernetes can be performed using deployment objects and their configurations.

• Use Kubernetes deployment objects to manage application updates.

• Specify the desired number of replicas and update strategy in the deployment configuration.

• To perform a rolling update, change the image version in the deployment configuration and apply the changes.

• Kubernetes will gradually update pods to the new version while maintaining availability.

• To rollback an upd...read more

To troubleshoot a Pod not running in a Kubernetes cluster, check logs, describe Pod, check resource limits, verify network connectivity, and restart Pod.

• Check the logs of the Pod to identify any error messages or issues

• Describe the Pod to get more information about its status, events, and configuration

• Check the resource limits and requests of the Pod to ensure it has enough resources to run

• Verify network connectivity within the cluster to ensure the Pod can communicate with o...read more

EC2 provides scalable virtual servers, while Lambda offers serverless computing for event-driven applications.

• EC2 (Elastic Compute Cloud) allows users to rent virtual servers for various workloads.

• Lambda is a serverless compute service that runs code in response to events without provisioning servers.

• EC2 requires management of the underlying infrastructure, while Lambda abstracts infrastructure management.

• Example: Use EC2 for hosting a web application with persistent storage;...read more

Set up CI/CD pipelines in AWS using services like CodePipeline, CodeBuild, and CodeDeploy for automated deployments.

• Use AWS CodePipeline to define the CI/CD workflow, integrating various stages like source, build, test, and deploy.

• Integrate AWS CodeCommit or GitHub as the source repository for version control.

• Utilize AWS CodeBuild to compile source code, run tests, and produce artifacts.

• Deploy applications using AWS CodeDeploy, which supports EC2 instances, Lambda functions, ...read more

AWS Budgets help users manage and control their cloud spending by setting custom cost and usage thresholds.

• Allows users to set budgets for specific services, e.g., EC2 or S3.

• Sends alerts when spending approaches or exceeds the budgeted amount.

• Supports tracking of both cost and usage metrics.

• Can be integrated with AWS Cost Explorer for detailed analysis.

• Example: Set a monthly budget of $500 for development resources.

I am excited to join this company for its innovative culture, commitment to cloud technology, and opportunities for professional growth.

• The company's reputation for cutting-edge cloud solutions aligns with my passion for technology.

• I admire the collaborative work environment that fosters creativity and innovation.

• The opportunity to work with a diverse team on impactful projects excites me.

• I am eager to contribute to the company's mission of delivering exceptional cloud servic...read more

AWS Cloud and DevOps Engineer with extensive experience in cloud architecture, automation, and CI/CD practices.

• Over 5 years of experience in cloud computing, primarily with AWS services like EC2, S3, and RDS.

• Proficient in Infrastructure as Code (IaC) using tools like Terraform and AWS CloudFormation.

• Implemented CI/CD pipelines using Jenkins and AWS CodePipeline, reducing deployment times by 30%.

• Strong background in containerization technologies such as Docker and orchestratio...read more

I have experience with a variety of technologies including AWS, Docker, Kubernetes, Jenkins, Terraform, and Ansible.

• AWS

• Docker

• Kubernetes

• Jenkins

• Terraform

• Ansible