Developer Associate (Page 53)

A company used AWS to develop an application for customers.The application includes an Amazon API Gateway API that invokes AWS Lambda functions.The Lambda functions process data and store the data in Amazon DynamoDB tables.The company must monitor the entire application to identify potential bottlenecks in the architecture that can negatively affect customers.Which solution will meet this requirement with the LEAST development effort?Read More →

A company wants to migrate an existing web application to AWS.The application consists of two web servers and a MySQL database.The company wants the application to automatically scale in response to demand.The company also wants to reduce its operational overhead for database backups and maintenance.The company needs the ability to deploy multiple versions of the application concurrently.What is the MOST operationally efficient solution that meets these requirements?Read More →

A developer needs to modify an application architecture to meet new functional requirements.Application data is stored in Amazon DynamoDB and processed for analysis in a nightly batch.The system analysts do not want to wait until the next day to view the processed data and have asked to have it available in near-real time.Which application architecture pattern would enable the data to be processed as it is received?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 →

A developer has written a distributed application that uses microservices.The microservices are running on Amazon EC2 instances.Because of message volume, the developer is unable to match log output from each microservice to a specific transaction.The developer needs to analyze the message flow to debug the application.Which combination of steps should the developer take to meet this requirement? (Choose two.)Read More →

A company is migrating a web application from on premises to AWS.The company needs to move session storage from the application code to a shared service as part of the migration.The session storage data must be encrypted at rest.Which AWS services meet these requirements? (Choose two.)Read More →

A developer is building a new containerized application by using AWS Copilot.The developer uses the AWS Copilot command line interface (CLI) to deploy the application during development.The developer committed the application code to a new AWS CodeCommit repository.The developer must create an automated deployment process before releasing the new application to production.What should the developer do to meet these requirements in the MOST operationally efficient way?Read More →

A developer supports an application that accesses data in an Amazon DynamoDB table.One of the item attributes is expiration Date in the timestamp format.The application uses this attribute to find items, archive them, and remove them from the table based on the timestamp value.The application will be decommissioned soon, and the developer must find another way to implement this functionality.The developer needs a solution that will require the least amount of code to write.Which solution will meet these requirements?Read More →

A developer is deploying an application in the AWS Cloud by using AWS CloudFormation.The application will connect to an existing Amazon RDS database.The hostname of the RDS database is stored in AWS Systems Manager Parameter Store as a plaintext value.The developer needs to incorporate the database hostname into the CloudFormation template to initialize the application when the stack is created.How should the developer reference the parameter that contains the database hostname?Read More →

A developer has created a web API that uses Amazon Elastic Container Service (Amazon ECS) and an Application Load Balancer (ALB).An Amazon CloudFront distribution uses the API as an origin for web clients.The application has received millions of requests with a JSON Web Token (JWT) that is not valid in the authorization header.The developer has scaled out the application to handle the unauthenticated requests.What should the developer do to reduce the number of unauthenticated requests to the API?Read More →