Developer Associate (Page 54)

A developer is making changes to a custom application that uses AWS Elastic Beanstalk.Which solutions will update the Elastic Beanstalk environment with the new application version after the developer completes the changes? (Choose two.)Read More →

An application is real-time processing millions of events that are received through an API.What service could be used to allow multiple consumers to process the data concurrently and MOST cost-effectively?Read More →

A company is migrating a legacy application to a serverless application on AWS.The legacy application consists of a set of web services that are exposed by an Amazon API Gateway API.A developer needs to replace the existing implementation of web services with AWS Lambda functions.The developer needs to test a new version of the API that uses the functions in production.The developer must minimize the impact of the testing on the application’s users.Which solution will meet these requirements?Read More →

An application that is hosted on an Amazon EC2 instance needs access to files that are stored in an Amazon S3 bucket.The application lists the objects that are stored in the S3 bucket and displays a table to the user.During testing, a developer discovers that the application does not show any objects in the list.What is the MOST secure way to resolve this issue?Read More →

A developer has created on AWS Lambda function tool uses 15 MB of memory.When the developer runs the code natively on a laptop that has 4 cores, the function runs within 100 ms.When the developer deploys the code as a Lambda function with 128 MB of memory, the first run takes 3 seconds.Subsequent runs take more than 500 ms to finish.The developer needs to improve the performance of the Lambda function so that the function runs consistently in less than 100 ms, excluding the initial startup time.Which solution will meet this requirement?Read More →

A company has an Amazon S3 bucket that contains sensitive data.The data must be encrypted in transit and at rest.The company encrypts the data in the S3 bucket by using an AWS Key Management Service (AWS KMS) key.A developer needs to grant several other AWS accounts the permission to use the S3 GetObject operation to retrieve the data from the S3 bucket.How can the developer enforce that all requests to retrieve the data provide encryption in transit?Read More →

A research company has a website that is used once each day to perform scientific calculations based on inputs that are submitted through a webpage.The calculations are CPU intensive.An AWS Lambda function performs the calculations once each day.Users occasionally receive errors because of Lambda function timeouts.Which change will reduce the Lambda function’s runtime duration?Read More →

A developer is working on a serverless application that needs to process any changes to an Amazon DynamoDB table with an AWS Lambda function.How should the developer configure the Lambda function to detect changes to the DynamoDB table?Read More →

A developer is working on an ecommerce website.The developer wants to review server logs without logging in to each of the application servers individually.The website runs on multiple Amazon EC2 instances, is written in Python, and needs to be highly available.How can the developer update the application to meet these requirements with MINIMUM changes?Read More →

A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream.The company recently observed slow processing of the records.A developer notices that the iterator age metric for the function is increasing and that the Lambda run duration is constantly above normal.Which actions should the developer take to increase the processing speed? (Choose two.)Read More →