Developer Associate (Page 37)

A developer has written code for an application and wants to share it with other developers on the team to receive feedback.The shared application code needs to be stored long-term with multiple versions and batch change tracking.Which AWS service should the developer use?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 has created a new IAM user that has the s3:PutObject permission to write to a specific Amazon S3 bucket.The S3 bucket uses server-side encryption with AWS KMS managed keys (SSE-KMS) as the default encryption.When an application uses the access key and secret key of the IAM user to call the PutObject API operation, the application receives an access denied error.What should the developer do to resolve this error?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 static website is hosted in an Amazon S3 bucket.Several HTML pages on the site use JavaScript to download images from another Amazon S3 bucket.These images are not displayed when users browse the site.What is the possible cause for the issue?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 →

A developer is exposing an API by using Amazon API Gateway and AWS Lambda as the backend for an application.The developer wants to add validation rules for a POST method to ensure that the data from the frontend web form is valid.The validation rules must include mandatory fields, data type, length, and regular expressions.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 →

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 →

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 →