Developer Associate (Page 37)

A developer is testing an application that invokes an AWS Lambda function asynchronously.During the testing phase, the Lambda function fails to process after two retries.How can the developer troubleshoot the failure?Read More →

A developer has created an AWS Lambda function to provide notification through Amazon Simple Notification Service (Amazon SNS) whenever a file is uploaded to Amazon S3 that is larger than 50 MB.The developer has deployed and tested the Lambda function by using the CLI.However, when the event notification is added to the S3 bucket and a 3,000 MB file is uploaded, the Lambda function does not launch.Which of the following is a possible reason for the Lambda function’s inability to launch?Read More →

A company needs to distribute firmware updates to its customers around the world.Which service will allow easy and secure control of the access to the downloads at the lowest cost?Read More →

A distributed application includes an AWS Lambda function that runs successfully in the DEV environment with 128 MB of memory assigned.The same function is failing in the TEST environment.The developer is monitoring the application using AWS X-Ray, but the Lambda function cannot be seen on the X-Ray service graph.The Lambda execution role has AWS X-Ray permissions.What is the MOST LIKELY cause for AWS X-Ray not showing any data for the Lambda function?Read More →

A company has an ecommerce application.To track product reviews, the company’s development team uses an Amazon DynamoDB table.Every record includes the following:• A Review ID, a 16-digit universally unique identifier (UUID)• A Product ID and User ID, 16-digit UUIDs that reference other tables• A Product Rating on a scale of 1-5• An optional comment from the userThe table partition key is the Review ID.The most performed query against the table is to find the 10 reviews with the highest rating for a given product.Which index will provide the FASTEST response for this query?Read More →

A company is running an application on AWS Elastic Beanstalk in a single-instance environment.The company’s deployments must avoid any downtime.Which deployment option will meet these requirements?Read More →

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 needs to create an application that supports Security Assertion Markup Language (SAML) and authentication with social media providers.It must also allow access to AWS services, such as Amazon DynamoDB.Which AWS service or feature will meet these requirements with the LEAST amount of additional coding?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 company has moved a legacy on-premises application to AWS by performing a lift and shift.The application exposes a REST API that can be used to retrieve billing information.The application is running on a single Amazon EC2 instance.The application code cannot support concurrent invocations.Many clients access the API, and the company adds new clients all the time.A developer is concerned that the application might become overwhelmed by too many requests.The developer needs to limit the number of requests to the API for all current and future clients.The developer must not change the API, the application, or the client code.What should the developer do to meet these requirements?Read More →