DVA-C02 (Page 25)

A developer is leveraging a Border Gateway Protocol (BGP)-based AWS VPN connection to connect from on-premises to Amazon EC2 instances in the developer’s account.The developer is able to access an EC2 instance in subnet A, but is unable to access an EC2 instance in subnet B in the same VPC.Which logs can the developer use to verify whether the traffic is reaching subnet B?Read More →

A developer has written an application that runs on Amazon EC2 instances.The developer is adding functionality for the application to write objects to an Amazon S3 bucket.Which policy must the developer modify to allow the instances to write these objects?Read More →

A developer is building a highly secure healthcare application using serverless components.This application requires writing temporary data to /tmp storage on an AWS Lambda function.How should the developer encrypt this data?Read More →

A developer is creating an application that will store personal health information (PHI).The PHI needs to be encrypted at all times.An encrypted Amazon RDS for MySQL DB instance is storing the data.The developer wants to increase the performance of the application by caching frequently accessed data while adding the ability to sort or rank the cached datasets.Which solution will meet these requirements?Read More →

A developer maintains an Amazon API Gateway REST API.Customers use the API through a frontend UI and Amazon Cognito authentication.The developer has a new version of the API that contains new endpoints and backward-incompatible interface changes.The developer needs to provide beta access to other developers on the team without affecting customers.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A developer needs to perform geographic load testing of an API.The developer must deploy resources to multiple AWS Regions to support the load testing of the API.How can the developer meet these requirements without additional application code?Read More →

A company needs to deploy all its cloud resources by using AWS CloudFormation templates.A developer must create an Amazon Simple Notification Service (Amazon SNS) automatic notification to help enforce this rule.The developer creates an SNS topic and subscribes the email address of the company’s security team to the SNS topic.The security team must receive a notification immediately if an IAM role is created without the use of CloudFormation.Which solution will meet this requirement?Read More →

A developer is working on a web application that uses Amazon DynamoDB as its data store.The application has two DynamoDB tables: one table that is named artists and one table that is named songs.The artists table has artistName as the partition key.The songs table has songName as the partition key and artistName as the sort key.The table usage patterns include the retrieval of multiple songs and artists in a single database operation from the webpage.The developer needs a way to retrieve this information with minimal network traffic and optimal application performance.Which solution will meet these requirements?Read More →

A company must deploy all its Amazon RDS DB instances by using AWS CloudFormation templates as part of AWS CodePipeline continuous integration and continuous delivery (CI/CD) automation.The primary password for the DB instance must be automatically generated as part of the deployment process.Which solution will meet these requirements with the LEAST development effort?Read More →

A company has a web application that runs on Amazon EC2 instances with a custom Amazon Machine Image (AMI).The company uses AWS CloudFormation to provision the application.The application runs in the us-east-1 Region, and the company needs to deploy the application to the us-west-1 Region.An attempt to create the AWS CloudFormation stack in us-west-1 fails.An error message states that the AMI ID does not exist.A developer must resolve this error with a solution that uses the least amount of operational overhead.Which solution meets these requirements?Read More →