Lambda

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: 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: 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.

AWS DVA-C02 Drill: Event-Driven Architecture - S3 Event Fan-Out to Multiple SQS Queues

1 December 2025·853 words·5 mins

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

Analyzing event notification fan-out from S3 to multiple SQS queues without changing Lambda code.

AWS DVA-C02 Drill: Lambda Event Invocation - EventBridge vs S3 Triggers

15 September 2025·740 words·4 mins

Certification Drills AWS DVA-C02 Lambda S3 Events EventBridge

Analyzing an event-driven Lambda architecture scenario to identify the correct invocation strategy when processing files uploaded to S3.

AWS DVA-C02 Drill: Event-Driven Lambda Architectures - Minimizing Operational Overhead with SNS Filtering

15 September 2025·887 words·5 mins

Certification Drills AWS DVA-C02 Lambda SNS Event Routing Message Filtering

Analyzing event-driven Lambda routing scenarios to identify the least operational overhead solution.

AWS DVA-C02 Drill: Lambda Cold Start Mitigation - Provisioned Concurrency vs. Reserved Limits

15 August 2025·796 words·4 mins

Certification Drills AWS DVA-C02 Lambda Provisioned Concurrency

Analyzing the Lambda cold start scenario to identify the correct implementation strategy.

AWS DVA-C02 Drill: API Gateway & Lambda Integration - Correct Response Format

15 August 2025·779 words·4 mins

Certification Drills AWS DVA-C02 API Gateway Lambda Integration

Analyzing an API Gateway to Lambda integration scenario to identify the correct Lambda response format.

AWS DVA-C02 Drill: Securing API Keys in Client-Facing Apps - Lambda vs. HTTP Integration

1 August 2025·867 words·5 mins

Certification Drills AWS DVA-C02 API Gateway Lambda API Key Security

Analyzing the best approach to safely use a third-party API key without exposing it to end users in a client-server architecture.

AWS DVA-C02 Drill: Serverless Deployment Automation - Mastering AWS SAM CLI vs CloudFormation

15 July 2025·827 words·4 mins

Certification Drills AWS DVA-C02 AWS SAM CloudFormation Lambda Serverless

Analyzing the automation of serverless application deployments to identify the optimal AWS CLI tools and workflow.

AWS DVA-C02 Drill: Securing Sensitive Data - Encryption in Transit for Lambda Configurations

15 July 2025·944 words·5 mins

Certification Drills AWS DVA-C02 Lambda KMS Secrets Manager SSM Parameter Store

Analyzing how to implement encryption in transit for sensitive Lambda configuration data using AWS KMS and related services.

AWS DVA-C02 Drill: Secure Credential Management - Choosing the Best AWS Service

15 July 2025·758 words·4 mins

Certification Drills AWS DVA-C02 Lambda AWS SDK SSM Parameter Store KMS

Analyzing the secure storage of sensitive credentials for Lambda functions in a serverless data pipeline.

AWS DVA-C02 Drill: Message Enrichment - Choosing the Least Developer Effort Integration

15 July 2025·827 words·4 mins

Certification Drills AWS DVA-C02 SQS Lambda EventBridge Pipes

Analyzing an event-driven message enrichment scenario to identify the simplest and most effective design approach.

AWS DVA-C02 Drill: Lambda Temporary Storage - Efficient Ephemeral File Handling

15 July 2025·836 words·4 mins

Certification Drills AWS DVA-C02 Lambda Ephemeral-Storage

Analyzing the optimal approach for managing temporary files inside AWS Lambda functions.

AWS DVA-C02 Drill: Lambda Destinations - Simplifying Error Handling with Least Dev Effort

15 July 2025·836 words·4 mins

Certification Drills AWS DVA-C02 Lambda Lambda Destinations

Analyzing different options for implementing a fallback Lambda for image processing with minimal development effort.

AWS DVA-C02 Drill: Lambda Asynchronous Invocation - Dead-Letter Queue Strategies

15 July 2025·868 words·5 mins

Certification Drills AWS DVA-C02 Lambda Dead-Letter Queue

Analyzing Lambda asynchronous failure handling to identify the optimal dead-letter queue setup.

AWS DVA-C02 Drill: Lambda Asynchronous Failure Handling - Least Operational Overhead

15 July 2025·751 words·4 mins

Certification Drills AWS DVA-C02 Lambda Dead-Letter Queue

Analyzing the best strategy to capture failed asynchronous Lambda invocations with minimal operational complexity.

AWS DVA-C02 Drill: Lambda & Aurora MySQL Connections - Efficient DB Access via RDS Proxy

15 July 2025·766 words·4 mins

Certification Drills AWS DVA-C02 Lambda Aurora MySQL RDS Proxy

Analyzing how to efficiently manage Aurora MySQL DB connections from Lambda functions to avoid connection limits, focusing on RDS Proxy.

AWS DVA-C02 Drill: API Gateway & Lambda Deployment - Multi-Environment Strategy

15 July 2025·700 words·4 mins

Certification Drills AWS DVA-C02 API Gateway Lambda Multi-Environment

Analyzing multi-environment API deployment strategies with AWS Lambda and API Gateway to identify the correct approach for efficient resource management.

AWS DVA-C02 Drill: Lambda Traffic Shifting - Alias Weighted Routing Efficiency

12 July 2025·810 words·4 mins

Certification Drills AWS DVA-C02 Lambda Traffic Shifting Aliases

Analyzing Lambda traffic shifting techniques to identify the most operationally efficient approach for gradual deployments.