Developer Associate (Page 32)

A front-end web application is using Amazon Cognito user pools to handle the user authentication flow.A developer is integrating Amazon DynamoDB into the application using the AWS SDK for JavaScript.How would the developer securely call the API without exposing the access or secret keys?Read More →

A developer is building a new application that will be deployed on AWS.The developer has created an AWS CodeCommit repository for the application.The developer has initialized a new project for the application by invoking the AWS Cloud Development Kit (AWS CDK) cdk init command.The developer must write unit tests for the infrastructure as code (IaC) templates that the AWS CDK generates.The developer also must run a validation tool across all constructs in the CDK application to ensure that critical security configurations are activated.Which combination of actions will meet these requirements with the LEAST development overhead? (Choose two.)Read More →

A company has a multi-tier application that uses Amazon API Gateway, AWS Lambda, and Amazon RDS.The company wants to investigate a slow response time to calls that come from the API Gateway API.What is the MOST operationally efficient way for the company to determine which internal call is causing the slow response times?Read More →

A company has deployed infrastructure on AWS.A development team wants to create an AWS Lambda function that will retrieve data from an Amazon Aurora database.The Amazon Aurora database is in a private subnet in company’s VPC.The VPC is named VPC1.The data is relational in nature.The Lambda function needs to access the data securely.Which solution will meet these requirements?Read More →

A developer must use AWS X-Ray to monitor an application that is running on an Amazon EC2 instance.The developer has prepared the application by using theX-Ray SDK.What should the developer do to perform the monitoring?Read More →

A developer is creating a database of products.Queries for frequently accessed products must have retrieval times of microseconds.To ensure data consistency, the application cache must be updated whenever products are added, changed, or deleted.Which solution will meet these requirements?Read More →

A developer needs to implement a cache to store data that an application frequently queries from an Amazon RDS for MySQL database.The data structures that will be cached include sets and sorted sets.How should the developer implement the cache to achieve the LOWEST latency?Read More →

A developer is working on an ecommerce platform that communicates with several third-party payment processing APIs.The third-party payment services do not provide a test environment.The developer needs to validate the ecommerce platform’s integration with the third-party payment processing APIs.The developer must test the API integration code without invoking the third-party payment processing APIs.Which solution will meet 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 has a multi-node Windows legacy application that runs on premises.The application uses a network shared folder as a centralized configuration repository to store configuration files in .xml format.The company is migrating the application to Amazon EC2 instances.As part of the migration to AWS, a developer must identify a solution that provides high availability for the repository.Which solution will meet this requirement MOST cost-effectively?Read More →