Certification Drills

AWS SOA-C02 Drill: EC2 Service Quotas - InstanceLimitExceeded Resolution

13 December 2025·1024 words·5 mins

Certification Drills AWS SOA-C02 EC2 Service Quotas InstanceLimitExceeded Troubleshooting

Analyzing the EC2 instance limit scenario to identify the correct troubleshooting strategy for SysOps administrators.

AWS SOA-C02 Drill: CloudFront Cache Invalidation - The Content Freshness Challenge

13 December 2025·1476 words·7 mins

Certification Drills AWS SOA-C02 CloudFront S3 Cache Invalidation Content Delivery Troubleshooting

Analyzing the CloudFront caching scenario to identify the correct operational strategy for forcing content updates when object names remain unchanged.

AWS DVA-C02 Drill: Version Control for Code - CodeCommit vs. S3 Versioning

13 December 2025·891 words·5 mins

Certification Drills AWS DVA-C02 CodeCommit S3 Version Control CI/CD Developer Tools

Analyzing the version control scenario to identify the correct implementation strategy for team-based code collaboration with full change tracking.

AWS DVA-C02 Drill: Session Management - ElastiCache vs. EBS vs. Instance Store

13 December 2025·1049 words·5 mins

Certification Drills AWS DVA-C02 ElastiCache Session Management EBS Instance Store Distributed Systems

Analyzing session data management across multiple EC2 instances to identify the correct persistence strategy for stateful applications.

AWS DVA-C02 Drill: S3 Event Notifications - SNS Fan-Out vs. Direct Integrations

13 December 2025·1525 words·8 mins

Certification Drills AWS DVA-C02 Amazon S3 Amazon SNS AWS Lambda Event-Driven Architecture S3 Event Notifications

Analyzing S3 event notification patterns to identify the correct implementation strategy for parallel processing and multi-channel notifications in serverless architectures.

AWS DVA-C02 Drill: S3 Encryption in Transit - Bucket Policy vs. Infrastructure Controls

13 December 2025·1053 words·5 mins

Certification Drills AWS DVA-C02 Amazon S3 Bucket Policies Encryption in Transit Aws:SecureTransport HTTPS Security

Analyzing the S3 data protection scenario to identify the correct developer-centric implementation strategy for enforcing HTTPS communication.

AWS DVA-C02 Drill: Lambda@Edge IAM Roles - Secure Frontend Credential Management

13 December 2025·1452 words·7 mins

Certification Drills AWS DVA-C02 Lambda@Edge CloudFront Functions AWS STS IAM Roles SDK Security Best Practices

Analyzing the Lambda@Edge and CloudFront Functions scenario to identify the correct strategy for secure credential management without hardcoding secrets.

AWS DVA-C02 Drill: Lambda-SQS Integration - Dead-Letter Queue vs. Manual Logging

13 December 2025·1006 words·5 mins

Certification Drills AWS DVA-C02 AWS Lambda Amazon SQS Dead-Letter Queue Error Handling Serverless

Analyzing Lambda function failure scenarios with SQS integration to identify the correct observability and retry strategy.

AWS DVA-C02 Drill: Lambda Tracing - X-Ray vs. CloudWatch Logs

13 December 2025·1191 words·6 mins

Certification Drills AWS DVA-C02 Lambda X-Ray CloudWatch Distributed Tracing

Analyzing Lambda troubleshooting scenarios to identify the correct tracing implementation strategy for developers.

AWS DVA-C02 Drill: Lambda Performance Monitoring - X-Ray Service Maps vs. CloudWatch Metrics

13 December 2025·1123 words·6 mins

Certification Drills AWS DVA-C02 AWS Lambda AWS X-Ray CloudWatch Performance Monitoring Distributed Tracing

Analyzing the Lambda performance monitoring scenario to identify the correct implementation strategy for measuring service-to-service latency.

AWS DVA-C02 Drill: Lambda Local Testing - SAM CLI vs. Unit Testing Frameworks

13 December 2025·1559 words·8 mins

Certification Drills AWS DVA-C02 AWS Lambda AWS SAM CLI Local Testing CI/CD Node.js AWS CDK

Analyzing local Lambda testing environments to identify the correct implementation strategy for DVA-C02 candidates focusing on CI/CD integration and developer experience.

AWS DVA-C02 Drill: Lambda Local Testing - SAM CLI vs. Manual Mocking

13 December 2025·1128 words·6 mins

Certification Drills AWS DVA-C02 AWS Lambda AWS SAM Local Testing S3 Events Developer Tools

Analyzing the Lambda local development workflow to identify the correct testing strategy with minimal operational overhead for DVA-C02 candidates.

AWS DVA-C02 Drill: Git Merge Conflicts - CodeCommit Resolution Strategies

13 December 2025·1263 words·6 mins

Certification Drills AWS DVA-C02 CodeCommit Git CI/CD CodePipeline Version Control

Analyzing CodeCommit merge conflict scenarios to identify the most efficient resolution strategy for developers in CI/CD pipelines.

AWS DVA-C02 Drill: ECS Fargate Environment Variables - Task Definition vs Service Definition

13 December 2025·1035 words·5 mins

Certification Drills AWS DVA-C02 ECS Fargate Task Definition Container Configuration

Analyzing the ECS container configuration scenario to identify the correct parameter placement for environment variables in Fargate deployments.

AWS DVA-C02 Drill: DynamoDB IAM Permissions - The Upsert Pattern Strategy

13 December 2025·1304 words·7 mins

Certification Drills AWS DVA-C02 DynamoDB Lambda IAM Upsert Pattern PutItem UpdateItem

Analyzing the DynamoDB upsert scenario to identify the minimal required IAM permissions for Lambda functions performing conditional write operations.

AWS DVA-C02 Drill: DynamoDB GSI vs LSI - Query Pattern Optimization

13 December 2025·1109 words·6 mins

Certification Drills AWS DVA-C02 DynamoDB GSI LSI Query Optimization Secondary Indexes

Analyzing the DynamoDB secondary index scenario to identify the correct implementation strategy for alternative query patterns.

AWS DVA-C02 Drill: DynamoDB GSI - Flexible Query Patterns Beyond the Partition Key

13 December 2025·1568 words·8 mins

Certification Drills AWS DVA-C02 DynamoDB GSI Global Secondary Index Query Patterns NoSQL

Analyzing the DynamoDB indexing scenario to identify the correct implementation strategy for multi-attribute queries in production applications.

AWS DVA-C02 Drill: Distributed Tracing - X-Ray vs. CloudWatch for Microservices Monitoring

13 December 2025·1259 words·6 mins

Certification Drills AWS DVA-C02 AWS X-Ray Distributed Tracing Microservices CloudWatch X-Ray SDK

Analyzing the distributed tracing scenario to identify the correct implementation strategy for monitoring microservices communication on EC2 instances.

AWS DVA-C02 Drill: CloudFormation DeletionPolicy - Stack Protection vs. Resource Retention

13 December 2025·1390 words·7 mins

Certification Drills AWS DVA-C02 CloudFormation DeletionPolicy Stack Policy RDS IaC

Analyzing CloudFormation protective mechanisms to prevent accidental database deletion during infrastructure deployments.

AWS DVA-C02 Drill: API Gateway Mock Integrations - Testing Without Lambda Dependencies

13 December 2025·1345 words·7 mins

Certification Drills AWS DVA-C02 API Gateway Mock Integration Frontend Testing Lambda Integration Testing

Analyzing API Gateway mock integration patterns to enable frontend developers to test independently while backend services are under development.