DVA-C02 (Page 28)

A developer is building a serverless application that connects to an Amazon Aurora PostgreSQL database.The serverless application consists of hundreds of AWS Lambda functions.During every Lambda function scale out, a new database connection is made that increases database resource consumption.The developer needs to decrease the number of connections made to the database.The solution must not impact the scalability of the Lambda functions.Which solution will meet these requirements?Read More →

A company had an Amazon RDS for MySQL DB instance that was named mysql-db.The DB instance was deleted within the past 90 days.A developer needs to find which IAM user or role deleted the DB instance in the AWS environment.Which solution will provide this information?Read More →

A developer built an application by using multiple AWS Lambda functions.The Lambda functions must access dynamic configuration data at runtime.The data is maintained as a 6 KB JSON document in AWS AppConfig.The configuration data needs to be updated without requiring the redeployment of the application.The developer needs a solution that will give the Lambda functions access to the dynamic configuration data.What should the developer do to meet these requirements with the LEAST development effort?Read More →

A developer is running an application on an Amazon EC2 instance.When the application tries to read an Amazon S3 bucket, the application fails.The developer notices that the associated IAM role is missing the S3 read permission.The developer needs to give the application the ability to read the S3 bucket.Which solution will meet this requirement with the LEAST application disruption?Read More →

A developer is writing a web application that is deployed on Amazon EC2 instances behind an internet-facing Application Load Balancer (ALB).The developer must add an Amazon CloudFront distribution in front of the ALB.The developer also must ensure that customer data from outside the VPC is encrypted in transit.Which combination of CloudFront configuration settings should the developer use to meet these requirements? (Choose two.)Read More →

A developer is working on an app for a company that uses an Amazon DynamoDB table named Orders to store customer orders.The table uses OrderID as the partition key and there is no sort key.The table contains more than 100,000 records.The developer needs to add a functionality that will retrieve all Orders records that contain an OrderSource attribute with the MobileApp value.Which solution will improve the user experience in the MOST efficient way?Read More →

A developer is designing a fault-tolerant environment where client sessions will be saved.How can the developer ensure that no sessions are lost if an Amazon EC2 instance fails?Read More →

A company hosts its application in the us-west-1 Region.The company wants to add redundancy in the us-east-1 Region.The application secrets are stored in AWS Secrets Manager in us-west-1.A developer needs to replicate the secrets to us-east-1.Which solution will meet this requirement?Read More →

A company has a development team that uses AWS CodeCommit for version control.The development team has CodeCommit repositories in multiple AWS accounts.The team is expanding to include developers who work in various locations.The company must ensure that the developers have secure access to the repositories.Which solution will meet these requirements in the MOST operationally efficient way?Read More →

A developer is creating an AWS Lambda function.The Lambda function needs an external library to connect to a third-party solution.The external library is a collection of files with a total size of 100 MB.The developer needs to make the external library available to the Lambda execution environment and reduce the Lambda package space.Which solution will meet these requirements with the LEAST operational overhead?Read More →