Correct Answer: A Dead-Letter Queue (DLQ) using SQS or SNS, or Lambda Destinations
DLQs or Destinations (onFailure) are used to capture failed events for asynchronous invocations....
Correct Answer
A Dead-Letter Queue (DLQ) using SQS or SNS, or Lambda Destinations
Why This Answer Is Correct
DLQs or Destinations (onFailure) are used to capture failed events for asynchronous invocations.
This question evaluates your knowledge of AWS Lambda — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding AWS Lambda is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.
You are designing a serverless microservices architecture for a new startup. The application needs to handle unpredictable traffic spikes without managing any underlying infrastructure. Which compute service should you use?
A solutions architect is designing a serverless application that processes large quantities of images uploaded to S3. Parallelism is critical. Which Lambda feature should be used to control the maximum number of concurrent executions to avoid overwhelming a downstream database?
An application requires lower latency for Lambda function starts after long periods of inactivity ('cold starts'). Which configuration is most appropriate for this use case?
A solutions architect needs to ensure that sensitive database credentials used by a Lambda function are not stored in plain text in the environment variables. What is the most secure AWS-native architectural pattern?
A Lambda function needs to process messages from an Amazon SQS queue. The architect wants to decrease the number of Lambda invocations to save costs. Which parameter should be adjusted?