DVA-C02 (Page 26)

A developer is creating AWS CloudFormation templates to manage an application’s deployment in Amazon Elastic Container Service (Amazon ECS) through AWS CodeDeploy.The developer wants to automatically deploy new versions of the application to a percentage of users before the new version becomes available for all users.How should the developer manage the deployment of the new version?Read More →

A developer is creating an AWS Lambda function that is invoked by messages to an Amazon Simple Notification Service (Amazon SNS) topic.The messages represent customer data updates from a customer relationship management (CRM) systemThe developer wants the Lambda function to process only the messages that pertain to email address changes.Additional subscribers to the SNS topic will process any other messages.Which solution will meet these requirements in the LEAST development effort?Read More →

A developer wrote an application that uses an AWS Lambda function to asynchronously generate short videos based on requests from customers.This video generation can take up to 10 minutes.After the video is generated, a URL to download the video is pushed to the customer’s web browser.The customer should be able to access these videos for at least 3 hours after generation.Which solution will meet these requirements?Read More →

A company has an application that uses an AWS Lambda function to process data.A developer must implement encryption in transit for all sensitive configuration data, such as API keys, that is stored in the application.The developer creates an AWS Key Management Service (AWS KMS) customer managed key.What should the developer do next to meet the encryption requirement?Read More →

A developer is implementing an AWS Lambda function that will be invoked when an object is uploaded to Amazon S3.The developer wants to test the Lambda function in a local development machine before publishing the function to a production AWS account.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A developer is writing an application, which stores data in an Amazon DynamoDB table.The developer wants to query the DynamoDB table by using the partition key and a different sort key value.The developer needs the latest data with all recent write operations.How should the developer write the DynamoDB query?Read More →

A developer at a company writes an AWS CloudFormation template.The template refers to subnets that were created by a separate AWS CloudFormation template that the company’s network team wrote.When the developer attempts to launch the stack for the first time, the launch fails.Which template coding mistakes could have caused this failure? (Choose two.)Read More →

A company is developing a serverless application by using AWS Lambda functions.One of the Lambda functions needs to access an Amazon RDS DB instance.The DB instance is in a private subnet inside a VPC.The company creates a role that includes the necessary permissions to access the DB instance.The company then assigns the role to the Lambda function.A developer must take additional action to give the Lambda function access to the DB instance.What should the developer do to meet these requirements?Read More →

A company is building a serverless application.The application uses an API key to authenticate with a third-party application.The company wants to store the external API key as a part of an AWS Lambda configuration.The company needs to have full control over the AWS Key Management Service (AWS KMS) keys that will encrypt the API key and should be visible only to authorized entities.Which solution will meet these requirements?Read More →

A company’s application has an AWS Lambda function that processes messages from IoT devices.The company wants to monitor the Lambda function to ensure that the Lambda function is meeting its required service level agreement (SLA).A developer must implement a solution to determine the application’s throughput in near real time.The throughput must be based on the number of messages that the Lambda function receives and processes in a given time period.The Lambda function performs initialization and post-processing steps that must not factor into the throughput measurement.What should the developer do to meet these requirements?Read More →