Developer Associate (Page 48)

A company configures an Amazon S3 bucket to deliver S3 object events to Amazon EventBridge (Amazon CloudWatch Events).An EventBridge rule invokes an AWS Lambda function for each object event that is received from the S3 bucket.A developer is working on a new version of the Lambda function.To ensure that the new Lambda function works as expected, the developer must run a repeatable test that uses realistic S3 bucket object events.The developer must minimize the amount of code and infrastructure that are required to support the test.Which solution will meet these requirements?Read More →

A developer maintains a critical business application that uses Amazon DynamoDB as the primary data store.The DynamoDB table contains millions of documents and receives 30-60 requests each minute.The developer needs to perform processing in near-real time on the documents when they are added or updated in the DynamoDB table.How can the developer implement this feature with the LEAST amount of change to the existing application code?Read More →

A developer is using an AWS CodeCommit repository to store source code for an application.The developer is using an AWS CodePipeline pipeline to deploy the application.The pipeline does not start automatically and must be started manually when a deployment is needed.The developer needs to configure the pipeline to start automatically.Which solution meets this requirement with the LEAST delay?Read More →

A developer is troubleshooting an application.The application includes several AWS Lambda functions that invoke an Amazon API Gateway API.The API Gateway’s method request is set up to use an Amazon Cognito authorizer for authentication.All the Lambda functions pass the user ID as part of the Authorization header to the API Gateway API.The API Gateway API returns a 403 status code for all GET requests.How should the developer resolve this issue?Read More →

A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API.When a call fails, no data is retrieved.What best practice should first be applied to address this issue?Read More →

A developer uses Amazon S3 Event Notifications to invoke AWS Lambda functions.The Lambda functions process images after the images are uploaded to S3 buckets.The developer has set up a development S3 bucket, a production S3 bucket, a development Lambda function, and a production Lambda function in the same AWS account.The developer notices that uploads to the development S3 bucket wrongly invoke the production Lambda function.The developer must prevent development data from affecting the production Lambda function.What should the developer do to meet these requirements?Read More →

A developer is writing a new AWS Serverless Application Model (AWS SAM) template with a new AWS Lambda function.The Lambda function runs complex code.The developer wants to test the Lambda function with more CPU power.What should the developer do to meet this requirement?Read More →

A company uses AWS to run its learning management system (LMS) application.The application runs on Amazon EC2 instances behind an Application Load Balancer (ALB).The application’s domain name is managed in Amazon Route 53.The application is deployed in a single AWS Region, but the company wants to improve application performance for users all over the world.Which solution will improve global performance with the LEAST operational overhead?Read More →

A developer has a legacy application that is hosted on-premises.Other applications hosted on AWS depend on the on-premises application for proper functioning.In case of any application errors, the developer wants to be able to use Amazon CloudWatch to monitor and troubleshoot all applications from one place.How can the developer accomplish this?Read More →

A developer hosts a static website on Amazon S3 and connects the website to an Amazon CloudFront distribution.The website uses a custom domain name that points to the CloudFront URL.The developer has set up a continuous integration and continuous delivery (CI/CD) pipeline.The pipeline automatically runs when changes occur in an AWS CodeCommit repository.The pipeline has a source stage and then a build stage.The build stage invokes an AWS CodeBuild project that references a buildspec.yml file.The buildspec.yml file builds the code and deploys the static files to the S3 bucket.The pipeline runs successfully, and the latest website files are visible in the S3 bucket and at the S3 website URL.However, when the developer accesses the website through the CloudFront domain, the updates are not reflected on the website.What should the developer configure the buildspec.yml file to do to resolve this issue?Read More →