DVA-C02 (Page 32)

A gaming website gives users the ability to trade game items with each other on the platform.The platform requires both users’ records to be updated and persisted in one transaction.If any update fails, the transaction must roll back.Which AWS solutions can provide the transactional capability that is required for this feature? (Choose two.)Read More →

A company stores all personally identifiable information (PII) in an Amazon DynamoDB table named PII in Account A.Developers are working on an application that is running on Amazon EC2 instances in Account B.The application in Account B requires access to the PII table.An administrator in Account A creates an IAM role named AccessPII that has permission to access the PII table.The administrator also creates a trust policy that specifies Account B as a principal that can assume the role.Which combination of steps should the developers take in Account B to allow their application to access the PII table? (Choose two.)Read More →

A developer has an application that asynchronously invokes an AWS Lambda function.The developer wants to store messages that resulted in failed invocations of the Lambda function so that the application can retry the call later.What should the developer do to accomplish this goal with the LEAST operational overhead?Read More →

A company is using Amazon API Gateway to invoke a new AWS Lambda function.The company has Lambda function versions in its PROD and DEV environments.In each environment, there is a Lambda function alias pointing to the corresponding Lambda function version.API Gateway has one stage that is configured to point at the PROD alias.The company wants to configure API Gateway to enable the PROD and DEV Lambda function versions to be simultaneously and distinctly available.Which solution will meet these requirements?Read More →

A developer is building a containerized application on AWS.The application communicates with a third-party service by using API keys.The developer needs a secure way to store the API keys and pass the API keys to the containerized application.Which solutions will meet these requirements? (Choose two.)Read More →

A company is using Amazon API Gateway to develop an API for its application on AWS.A developer needs to test and generate API responses.Other teams are required to test the API immediately.What should the developer do to meet these requirements?Read More →

A company has built a serverless application for its ecommerce website.The application includes a REST API in Amazon API Gateway that invokes an AWS Lambda function.The Lambda function processes data and stores the data in Amazon DynamoDB table.The Lambda function calls a third-party stock application API to process the order.After the ordered is processed, the Lambda function returns an HTTP 200 status code with no body to the client.During peak usage when the API calls exceeds a certain threshold, the third-party stock application sometimes fails to process the data and responds with error messages.The company needs a solution that will not overwhelm the third-party stock application.Which solution will meet these requirements?Read More →

A developer is building an application that invokes AWS Lambda functions asynchronously to process events.The developer notices that a Lambda function fails to process some events at random times.The developer needs to investigate the failed events and capture the events that the Lambda function fails to process.Which solution will meet these requirements?Read More →

A developer is building an application on AWS.The application includes an AWS Lambda function that processes messages from an Amazon Simple Queue Service (Amazon SQS) queue.The Lambda function sometimes fails or times out.The developer needs to figure out why the Lambda function fails to process some messages.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A company is building a serverless application on AWS.The application uses Amazon API Gateway and AWS Lambda.The company wants to deploy the application to its development, test, and production environments.Which solution will meet these requirements with the LEAST development effort?Read More →