DVA-C02 (Page 5)

A developer is integrating Amazon ElastiCache in an application.The cache will store data from a database.The cached data must populate real-time dashboards.Which caching strategy will meet these requirements?Read More →

An organization is storing large files in Amazon S3, and is writing a web application to display meta-data about the files to end-users.Based on the metadata a user selects an object to download.The organization needs a mechanism to index the files and provide single-digit millisecond latency retrieval for the metadata.What AWS service should be used to accomplish this?Read More →

An application that is deployed to Amazon EC2 is using Amazon DynamoDB.The application calls the DynamoDB REST API.Periodically, the application receives a ProvisionedThroughputExceededException error when the application writes to a DynamoDB table.Which solutions will mitigate this error MOST cost-effectively? (Choose two.)Read More →

An application that runs on AWS Lambda requires access to specific highly confidential objects in an Amazon S3 bucket.In accordance with the principle of least privilege, a company grants access to the S3 bucket by using only temporary credentials.How can a developer configure access to the S3 bucket in the MOST secure way?Read More →

An engineer created an A/B test of a new feature on an Amazon CloudWatch Evidently project.The engineer configured two variations of the feature (Variation A and Variation B) for the test.The engineer wants to work exclusively with Variation A.The engineer needs to make updates so that Variation A is the only variation that appears when the engineer hits the application’s endpoint.Which solution will meet this requirement?Read More →

A developer is creating an AWS Lambda function that needs credentials to connect to an Amazon RDS for MySQL database.An Amazon S3 bucket currently stores the credentials.The developer needs to improve the existing solution by implementing credential rotation and secure storage.The developer also needs to provide integration with the Lambda function.Which solution should the developer use to store and retrieve the credentials with the LEAST management overhead?Read More →

A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream.The company recently observed slow processing of the records.A developer notices that the iterator age metric for the function is increasing and that the Lambda run duration is constantly above normal.Which actions should the developer take to increase the processing speed? (Choose two.)Read More →

A developer is working on a serverless application that needs to process any changes to an Amazon DynamoDB table with an AWS Lambda function.How should the developer configure the Lambda function to detect changes to the DynamoDB table?Read More →

A company has an Amazon S3 bucket that contains sensitive data.The data must be encrypted in transit and at rest.The company encrypts the data in the S3 bucket by using an AWS Key Management Service (AWS KMS) key.A developer needs to grant several other AWS accounts the permission to use the S3 GetObject operation to retrieve the data from the S3 bucket.How can the developer enforce that all requests to retrieve the data provide encryption in transit?Read More →

An application that is hosted on an Amazon EC2 instance needs access to files that are stored in an Amazon S3 bucket.The application lists the objects that are stored in the S3 bucket and displays a table to the user.During testing, a developer discovers that the application does not show any objects in the list.What is the MOST secure way to resolve this issue?Read More →