DVA-C02 (Page 14)

A developer at a company needs to create a small application that makes the same API call once each day at a designated time.The company does not have infrastructure in the AWS Cloud yet, but the company wants to implement this functionality on AWS.Which solution meets these requirements in the MOST operationally efficient manner?Read More →

A developer has observed an increase in bugs in the AWS Lambda functions that a development team has deployed in its Node.js application.To minimize these bugs, the developer wants to implement automated testing of Lambda functions in an environment that closely simulates the Lambda environment.The developer needs to give other developers the ability to run the tests locally.The developer also needs to integrate the tests into the team’s continuous integration and continuous delivery (CI/CD) pipeline before the AWS Cloud Development Kit (AWS CDK) deployment.Which solution will meet these requirements?Read More →

A developer must analyze performance issues with production-distributed applications written as AWS Lambda functions.These distributed Lambda applications invoke other components that make up the applications.How should the developer identify and troubleshoot the root cause of the performance issues in production?Read More →

An ecommerce application is running behind an Application Load Balancer.A developer observes some unexpected load on the application during non-peak hours.The developer wants to analyze patterns for the client IP addresses that use the application.Which HTTP header should the developer use for this analysis?Read More →

An application runs on multiple EC2 instances behind an ELB.Where is the session data best written so that it can be served reliably across multiple requests?Read More →

A company is using Amazon OpenSearch Service to implement an audit monitoring system.A developer needs to create an AWS CloudFormation custom resource that is associated with an AWS Lambda function to configure the OpenSearch Service domain.The Lambda function must access the OpenSearch Service domain by using OpenSearch Service internal master user credentials.What is the MOST secure way to pass these credentials to the Lambda function?Read More →

A developer is planning to migrate on-premises company data to Amazon S3.The data must be encrypted, and the encryption keys must support automatic annual rotation.The company must use AWS Key Management Service (AWS KMS) to encrypt the data.Which type of keys should the developer use to meet these requirements?Read More →

An organization is using Amazon CloudFront to ensure that its users experience low-latency access to its web application.The organization has identified a need to encrypt all traffic between users and CloudFront, and all traffic between CloudFront and the web application.How can these requirements be met? (Choose two.)Read More →

A developer is building an application that uses AWS API Gateway APIs, AWS Lambda functions, and AWS DynamoDB tables.The developer uses the AWS Serverless Application Model (AWS SAM) to build and run serverless applications on AWS.Each time the developer pushes changes for only to the Lambda functions, all the artifacts in the application are rebuilt.The developer wants to implement AWS SAM Accelerate by running a command to only redeploy the Lambda functions that have changed.Which command will meet these requirements?Read More →

A company’s website runs on an Amazon EC2 instance and uses Auto Scaling to scale the environment during peak times.Website users across the world are experiencing high latency due to static content on the EC2 instance, even during non-peak hours.Which combination of steps will resolve the latency issue? (Choose two.)Read More →