DVA-C02 (Page 7)

A developer needs approval from a product owner before the developer can deploy code for an application to production.The developer uses AWS CodePipeline to deploy the application.The developer configures an Amazon Simple Notification Service (Amazon SNS) topic to send notifications to the product owner.Which solution is the MOST operationally efficient way for the developer to receive approval from the product owner?Read More →

A company introduced a new feature that should be accessible to only a specific group of premium customers.A developer needs the ability to turn the feature on and off in response to performance and feedback.The developer needs a solution to validate and deploy these configurations quickly without causing any disruptions.What should the developer do to meet these requirements?Read More →

A company has an analytics application that uses an AWS Lambda function to process transaction data asynchronously.A developer notices that asynchronous invocations of the Lambda function sometimes fail.When failed Lambda function invocations occur, the developer wants to invoke a second Lambda function to handle errors and log details.Which solution will meet these requirements?Read More →

A company has on-premises data centers that run an image processing service.The service consists of containerized applications that run on Kubernetes clusters.All the applications have access to the same NFS share for files and data storage.The company is running out of NFS capacity in the data centers and needs to migrate to AWS as soon as possible.The Kubernetes clusters must be highly available on AWS.Which combination of actions will meet these requirements? (Choose two.)Read More →

A developer created an AWS Lambda function that performs a series of operations that involve multiple AWS services.The function’s duration time is higher than normal.To determine the cause of the issue, the developer must investigate traffic between the services without changing the function code.Which solution will meet these requirements?Read More →

A company has a social media application that receives large amounts of traffic.User posts and interactions are continuously updated in an Amazon RDS database.The data changes frequently, and the data types can be complex.The application must serve read requests with minimal latency.The application’s current architecture struggles to deliver these rapid data updates efficiently.The company needs a solution to improve the application’s performance.Which solution will meet these requirements?Read More →

A data visualization company wants to strengthen the security of its core applications.The applications are deployed on AWS across its development, staging, pre-production, and production environments.The company needs to encrypt all of its stored sensitive credentials.The sensitive credentials need to be automatically rotated.A version of the sensitive credentials need to be stored for each environment.Which solution will meet these requirements in the MOST operationally efficient way?Read More →

A company has an application that runs across multiple AWS Regions.The application is experiencing performance issues at irregular intervals.A developer must use AWS X-Ray to implement distributed tracing for the application to troubleshoot the root cause of the performance issues.What should the developer do to meet this requirement?Read More →

A developer is using AWS Step Functions to automate a workflow.The workflow defines each step as an AWS Lambda function task.The developer notices that runs of the Step Functions state machine fail in the GetResource task with either an IllegalArgumentException error or a TooManyRequestsException error.The developer wants the state machine to stop running when the state machine encounters an IllegalArgumentException error.The state machine needs to retry the GetResource task one additional time after 10 seconds if the state machine encounters a TooManyRequestsException error.If the second attempt fails, the developer wants the state machine to stop running.How can the developer implement the Lambda retry functionality without adding unnecessary complexity to the state machine?Read More →

An AWS Lambda function requires read access to an Amazon S3 bucket and requires read/write access to an Amazon DynamoDB table.The correct IAM policy already exists.What is the MOST secure way to grant the Lambda function access to the S3 bucket and the DynamoDB table?Read More →