Capgemini AWS Interview Questions and Answers Latest

Capgemini AWS Interview Questions and Answers

Here are some commonly asked AWS interview questions in Capgemini interviews, based on recent experiences shared by candidates (for both freshers and experienced professionals). These often focus on core services, architecture, and practical scenarios.

1. What is AWS, and what are its key components? 
   AWS (Amazon Web Services) is a comprehensive cloud computing platform providing IaaS, PaaS, and SaaS. Key components include EC2 (compute), S3 (storage), RDS (databases), VPC (networking), Lambda (serverless), and IAM (security).
2. Explain AWS Serverless Application Model (SAM). 
   AWS SAM is an open-source framework for building serverless applications. It uses YAML to define functions, APIs, databases, and event mappings, simplifying deployment with shorthand syntax.
3. What is Amazon ElastiCache, and when would you use it?
    ElastiCache is a managed in-memory data store service compatible with Redis or Memcached. Use it for high-throughput, low-latency applications like caching to improve performance in data-intensive apps.
4. How do you interact with Amazon S3?
    Use the REST API, AWS SDKs (which wrap the REST API for easier programming), or tools like the AWS CLI. Interactions can be authenticated or anonymous.
5. What are the types of EC2 instances, and which is the lowest cost?
    Types include On-Demand, Reserved, Spot, and Dedicated. Spot instances are typically the lowest cost as they use spare capacity but can be interrupted.
6. Can you recover a lost AWS key pair for an EC2 instance? What do you do if lost? 
   No, you cannot recover a lost key pair. Instead, create a new one and attach it, or stop the instance, detach the volume, attach it to another instance to modify authorized keys, then reattach.
7. What is Route 53, and its routing policies? 
   Route 53 is AWS’s scalable DNS service. Policies include Simple, Weighted, Latency-based, Failover, Geolocation, and Multivalue Answer.
8. What is the use of a VPC Endpoint in Amazon S3? 
   It allows private connectivity from your VPC to S3 without internet access, improving security and reducing costs.
9. How do you configure an EC2 instance to access AWS Secrets Manager? 
   Create an IAM role with Secrets Manager permissions, attach it to the EC2 instance (during launch or later via console), and use SDKs to retrieve secrets.
10. Explain DynamoDB. 
    DynamoDB is a fully managed NoSQL database service supporting key-value and document data models, offering seamless scaling and low-latency performance.

Capgemini DevOps Interview Questions and Answers

Capgemini DevOps interviews often emphasize CI/CD pipelines, tools, cloud integration (especially AWS/Azure), and real-world scenarios.

1. What is DevOps, and how does it differ from Agile? 
   DevOps is a set of practices combining development and operations for faster, reliable delivery using automation and collaboration. Agile focuses on iterative development; DevOps extends it to include deployment and operations.
2. Explain CI/CD. How have you implemented it? 
   Continuous Integration (building/testing code frequently) and Continuous Deployment (automating releases). Common implementation: Use Jenkins/GitHub Actions for pipelines, integrated with Git, Docker, and Kubernetes.
3. What DevOps tools are you familiar with? 
   Common ones: Git (version control), Jenkins (CI/CD), Docker (containerization), Kubernetes (orchestration), Terraform (IaC), Ansible (configuration), AWS services like CodePipeline/CodeDeploy.
4. How do you build a CI/CD pipeline using Jenkins?
    Install Jenkins, create jobs/pipelines (using Jenkinsfile), integrate with Git for triggers, add build/test stages (Maven/Docker), deploy stages (to AWS/K8s), and use plugins for notifications/monitoring.
5. Questions on Kubernetes and Docker.
   • Docker: Containerization platform for packaging apps with dependencies.
   • Kubernetes: Orchestrates containers (pods, deployments, services). Common questions: Difference between Pod and Deployment, how to scale, Helm for packaging.
6. How do you integrate Git with Jenkins? 
   Use webhooks in Git repo to trigger Jenkins builds on push/commit. Configure Jenkins job with Git repository URL and credentials.
7. What is Infrastructure as Code (IaC), and tools used? 
   Managing infrastructure via code (e.g., JSON/YAML). Tools: Terraform (multi-cloud), CloudFormation (AWS-specific).
8. Monitoring tools in DevOps? 
   Prometheus/Grafana, ELK Stack, CloudWatch (AWS), or Splunk.
9. Scenario: How to handle secrets in pipelines?
    Use tools like AWS Secrets Manager, HashiCorp Vault, or Jenkins credentials plugin. Avoid hardcoding; integrate via environment variables.
10. AWS-specific DevOps: How to deploy with AWS CodeDeploy? 
    CodeDeploy automates deployments to EC2, Lambda, or on-premises. Define appspec.yaml for hooks (install, start), and use agents.

Capgemini AWS DevOps Combined Questions

For roles combining both (common in Capgemini):

1. How do you set up CI/CD on AWS? 
   Use AWS CodePipeline, CodeBuild, CodeDeploy, integrated with GitHub/ECR/ECS/EKS.
2. Terraform vs. CloudFormation? 
   Terraform: Multi-cloud, declarative. CloudFormation: AWS-native, supports stacks.
3. Kubernetes on AWS (EKS)?
    Managed K8s service. Questions on control plane, node groups, integration with IAM/IRSA for pod permissions.
4. Autoscaling in AWS? 
   Use Auto Scaling Groups for EC2, or HPA in EKS for pods.

Preparation Tips:

• Focus on your resume—questions are often based on mentioned tools/experience.
• Be ready for scenario-based questions (e.g., troubleshooting pipelines, securing AWS resources).
• Common rounds: Technical (1-2), Managerial/HR.
• Resources like AmbitionBox, Glassdoor, and Credo Systemz share real experiences.

For more details or training, sites like cloudsoftsol.com offer AWS/DevOps interview prep resources (though not specific to Capgemini). Good luck!