DVA-C02 (Page 6)

An application is real-time processing millions of events that are received through an API.What service could be used to allow multiple consumers to process the data concurrently and MOST cost-effectively?Read More →

A web application is using Amazon Kinesis Data Streams for clickstream data that may not be consumed for up to 12 hours.How can the developer implement encryption at rest for data within the Kinesis Data Streams?Read More →

An application needs to use the IP address of the client in its processing.The application has been moved into AWS and has been placed behind an Application Load Balancer (ALB).However, all the client IP addresses now appear to be the same.The application must maintain the ability to scale horizontally.Based on this scenario, what is the MOST cost-effective solution to this problem?Read More →

A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API.When a call fails, no data is retrieved.What best practice should first be applied to address this issue?Read More →

A company has an existing application that has hardcoded database credentials.A developer needs to modify the existing application.The application is deployed in two AWS Regions with an active-passive failover configuration to meet company’s disaster recovery strategy.The developer needs a solution to store the credentials outside the code.The solution must comply with the company’s disaster recovery strategy.Which solution will meet these requirements in the MOST secure way?Read More →

A developer has built a market application that stores pricing data in Amazon DynamoDB with Amazon ElastiCache in front.The prices of items in the market change frequently.Sellers have begun complaining that, after they update the price of an item, the price does not actually change in the product listing.What could be causing this issue?Read More →

A developer is working on an AWS Lambda function that accesses Amazon DynamoDB.The Lambda function must retrieve an item and update some of its attributes, or create the item if it does not exist.The Lambda function has access to the primary key.Which IAM permissions should the developer request for the Lambda function to achieve this functionality?Read More →

A developer needs to troubleshoot an AWS Lambda function in a development environment.The Lambda function is configured in VPC mode and needs to connect to an existing Amazon RDS for SQL Server DB instance.The DB instance is deployed in a private subnet and accepts connections by using port 1433.When the developer tests the function, the function reports an error when it tries to connect to the database.Which combination of steps should the developer take to diagnose this issue? (Choose two.)Read More →

A company uses Amazon API Gateway to expose a set of APIs to customers.The APIs have caching enabled in API Gateway.Customers need a way to invalidate the cache for each API when they test the API.What should a developer do to give customers the ability to invalidate the API cache?Read More →

A developer is preparing to begin development of a new version of an application.The previous version of the application is deployed in a production environment.The developer needs to deploy fixes and updates to the current version during the development of the new version of the application.The code for the new version of the application is stored in AWS CodeCommit.Which solution will meet these requirements?Read More →