DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 177

An ecommerce company is using an AWS Lambda function behind Amazon API Gateway as its application tier. To process orders during checkout, the application calls a POST API from the frontend. The POST API invokes the Lambda function asynchronously. In rare situations, the application has not processed orders. The Lambda application logs show no errors or failures.

What should a developer do to solve this problem?

Inspect the frontend logs for API failures. Call the POST API manually by using the requests from the log file.

Create and inspect the Lambda dead-letter queue. Troubleshoot the failed functions. Reprocess the events.

Inspect the Lambda logs in Amazon CloudWatch for possible errors. Fix the errors.

Make sure that caching is disabled for the POST API in API Gateway.

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Question # 178

A developer needs to perform geographic load testing of an API. The developer must deploy resources to multiple AWS Regions to support the load testing of the API.

How can the developer meet these requirements without additional application code?

Create and deploy an AWS Lambda function in each desired Region. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.

Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.

Create an AWS Systems Manager document that defines the resources. Use the document to create the resources in the desired Regions.

Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI deploy command to create a stack from the template in each Region.

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