Developer Associate (Page 20)

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 →

A developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute.Requirements state that the web tier should be completely stateless while the application maintains session state for the users.How can session data be externalized, keeping latency at the LOWEST possible value?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 →

A company has an AWS Lambda function that reads messages from an Amazon Simple Queue Service (Amazon SQS) queue by using the Amazon SQS API.The Lambda function is not processing all the messages successfully because of random failures of a third-party dependency.A developer needs to improve the reliability of the Lambda function so that the Lambda function will process each message successfully despite the failures of the third-party dependency.Which solution will meet this requirement with the LEAST effort?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 has built an application running on AWS Lambda using AWS Serverless Application Model (AWS SAM).What is the correct sequence of steps to successfully deploy the application?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 needs an event-management platform to accept registrations for an upcoming event.The platform must perform a single invocation of an existing AWS Lambda function 10 minutes after a user completes a new account registration.Which solution will meet these requirements?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 an ecommerce website.The developer wants to review server logs without logging in to each of the application servers individually.The website runs on multiple Amazon EC2 instances, is written in Python, and needs to be highly available.How can the developer update the application to meet these requirements with MINIMUM changes?Read More →