Developer Associate (Page 68)

A developer has created an AWS Lambda function to provide notification through Amazon Simple Notification Service (Amazon SNS) whenever a file is uploaded to Amazon S3 that is larger than 50 MB.The developer has deployed and tested the Lambda function by using the CLI.However, when the event notification is added to the S3 bucket and a 3,000 MB file is uploaded, the Lambda function does not launch.Which of the following is a possible reason for the Lambda function’s inability to launch?Read More →

A company is planning to use AWS CodeDeploy to deploy an application to Amazon Elastic Container Service (Amazon ECS).During the deployment of a new version of the application, the company initially must expose only 10% of live traffic to the new version of the deployed application.Then, after 15 minutes elapse, the company must route all the remaining live traffic to the new version of the deployed application.Which CodeDeploy predefined configuration will meet these requirements?Read More →

A developer wants to debug an application by searching and filtering log data.The application logs are stored in Amazon CloudWatch Logs.The developer creates a new metric filter to count exceptions in the application logs.However, no results are returned from the logs.What is the reason that no filtered results are being returned?Read More →

A company is planning to deploy an application on AWS behind an Elastic Load Balancer.The application uses an HTTP/HTTPS listener and must access the client IP addresses.Which load-balancing solution meets these requirements?Read More →

An application under development is required to store hundreds of video files.The data must be encrypted within the application prior to storage, with a unique key for each video file.How should the developer code the application?Read More →

A developer deployed an application to an Amazon EC2 instance.The application needs to know the public IPv4 address of the instance.How can the application find this information?Read More →

A company runs an application on AWS.The company deployed the application on Amazon EC2 instances.The application stores data on Amazon Aurora.The application recently logged multiple application-specific custom DECRYP_ERROR errors to Amazon CloudWatch logs.The company did not detect the issue until the automated tests that run every 30 minutes failed.A developer must implement a solution that will monitor for the custom errors and alert a development team in real time when these errors occur in the production environment.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A development team maintains a web application by using a single AWS RDS, template.The template defines web servers and an Amazon RDS database.The team uses the CloudFormation template to deploy the CloudFormation stack to different environments.During a recent application deployment, a developer caused the primary development database to be dropped and recreated.The result of this incident was a loss of data.The team needs to avoid accidental database deletion in the future.Which solutions will meet these requirements? (Choose two.)Read More →

A company is using AWS CloudFormation to deploy a two-tier application.The application will use Amazon RDS as its backend database.The company wants a solution that will randomly generate the database password during deployment.The solution also must automatically rotate the database password without requiring changes to the application.What is the MOST operationally efficient solution that meets these requirements?Read More →

A developer is troubleshooting an Amazon API Gateway API.Clients are receiving HTTP 400 response errors when the clients try to access an endpoint of the API.How can the developer determine the cause of these errors?Read More →