DVA-C01 (Page 9)

A developer has discovered that an application responsible for processing messages in an Amazon SQS queue is routinely falling behind.The application is capable of processing multiple messages in one invocation, but is only receiving one message at a time.What should the developer do to increase the number of messages the application receives?Read More →

A developer is writing a new web application that will be deployed and managed with AWS Elastic Beanstalk.The application will include an Amazon RDS DB instance.What steps should the developer take to access the RDS DB instance from the code? (Choose two.)Read More →

A company stores documents in Amazon S3 with default settings.A new regulation requires the company to encrypt the documents at rest, rotate the encryption keys annually, and keep a record of when the encryption keys were rotated.The company does not want to manage the encryption keys outside of AWS.Which solution will meet these requirements?Read More →

A developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB.In the local development environment, the application has used IAM access keys.The application is now ready for deployment onto an ECS cluster.How should the application authenticate with AWS services in production?Read More →

A developer is building a serverless application that is based on AWS Lambda.The developer initializes the AWS software development kit (SDK) outside of theLambda handler function.What is the PRIMARY benefit of this action?Read More →

An application needs to encrypt data that is written to Amazon S3 where the keys are managed in an on-premises data center, and the encryption is handled byS3.Which type of encryption should be used?Read More →

A developer is deploying an application that will store files in an Amazon S3 bucket.The files must be encrypted at rest.The developer wants to automatically replicate the files to an S3 bucket in a different AWS Region for disaster recovery.How can the developer accomplish this task with the LEAST amount of configuration?Read More →

A developer is debugging an AWS Lambda function behind an Amazon API Gateway.Whenever the API Gateway endpoint is called, HTTP status code 200 is returned even though AWS Lambda is recording a 4xx error.What change needs to be made to return a proper error code through the API Gateway?Read More →

A Developer is working on an application that handles 10MB documents that contain highly-sensitive data.The application will use AWS KMS to perform client- side encryption.What steps must be followed?Read More →

A developer has an application that is composed of many different AWS Lambda functions.The Lambda functions all use some of the same dependencies.To avoid security issues, the developer is constantly updating the dependencies of all of the Lambda functions.The result is duplicated effort for each function.How can the developer keep the dependencies of the Lambda functions up to date with the LEAST additional complexity?Read More →