Developer Associate (Page 26)

A company is building a serverless application that uses AWS Lambda.The application includes Lambda functions that are exposed by Amazon API Gateway.The functions will use several large third-party libraries, and the build artifacts will exceed 50 MB in size.Which combination of steps should a developer take to prepare and perform the deployment? (Choose two.)Read More →

A developer creates a VPC named VPC-A that has public and private subnets.The developer also creates an Amazon RDS database inside the private subnet of VPC-A.To perform some queries, the developer creates an AWS Lambda function in the default VPC.The Lambda function has code to access the RDS database.When the Lambda function runs, an error message indicates that the function cannot connect to the RDS database.How can the developer solve this problem?Read More →

An application that is deployed to Amazon EC2 is using Amazon DynamoDB.The application calls the DynamoDB REST API.Periodically, the application receives a ProvisionedThroughputExceededException error when the application writes to a DynamoDB table.Which solutions will mitigate this error MOST cost-effectively? (Choose two.)Read More →

A company has a serverless application that uses Amazon API Gateway backed by AWS Lambda proxy integration.The company is developing several backend APIs.The company needs a landing page to provide an overview of navigation to the APIs.A developer creates a new/LandingPage resource and a new GET method that uses mock integration.What should the developer do next to meet these requirements?Read More →

A company is working on a new serverless application.A developer needs to find an automated way to deploy AWS Lambda functions and the dependent infrastructure with minimum coding effort.The application also needs to be reliable.Which method will meet these requirements with the LEAST operational overhead?Read More →

A company has a web application that contains an Amazon API Gateway REST API.A developer has created an AWS CloudFormation template for the initial deployment of the application.The developer has deployed the application successfully as part of an AWS CodePipeline continuous integration and continuous delivery (CI/CD) process.All resources and methods are available through the deployed stage endpoint.The CloudFormation template contains the following resource types:• AWS::ApiGateway::RestApi• AWS::ApiGateway::Resource• AWS::ApiGateway::Method• AWS::ApiGateway::Stage• AWS::ApiGateway::DeploymentThe developer adds a new resource to the REST API with additional methods and redeploys the template.CloudFormation reports that the deployment is successful and that the stack is in the UPDATE_COMPLETE state.However, calls to all new methods are returning 404 (Not Found) errors.What should the developer do to make the new methods available?Read More →

A developer is creating a new application that will be accessed by users through an API created using Amazon API Gateway.The users need to be authenticated by a third-party Security Assertion Markup Language (SAML) identity provider.Once authenticated, users will need access to other AWS services, such as Amazon S3 and Amazon DynamoDB.How can these requirements be met?Read More →

A company maintains a REST service using Amazon API Gateway and the API Gateway native API key validation.The company recently launched a new registration page, which allows users to sign up for the service.The registration page creates a new API key using CreateApiKey and sends the new key to the user.When the user attempts to call the API using this key, the user receives a 403 Forbidden error.Existing users are unaffected and can still call the API.What code updates will grant these new users access to the API?Read More →

A developer is writing an application to encrypt files outside of AWS before uploading the files to an Amazon S3 bucket.The encryption must be symmetric and must be performed inside the application.How can the developer implement the encryption in the application to meet these requirements?Read More →

A developer has an application that uses an Amazon DynamoDB table with a configured local secondary index (LSI).During application testing, the DynamoDB table metrics report a ProvisionedThroughputExceededException error message.The number of requests made by the test suite did not exceed the table’s provisioned capacity limits.What is the cause of this issue?Read More →