Developer Associate (Page 44)

A company is using AWS CodePipeline to deliver one of its applications.The delivery pipeline is triggered by changes to the main branch of an AWS CodeCommit repository and uses AWS CodeBuild to implement the test and build stages of the process and AWS CodeDeploy to deploy the application.The pipeline has been operating successfully for several months and there have been no modifications.Following a recent change to the application’s source code, AWS CodeDeploy has not deployed the updated application as expected.What are the possible causes? (Choose two.)Read More →

When using the AWS Encryption SDK, how does the developer keep track of the data encryption keys used to encrypt data?Read More →

A company is creating a REST service using an Amazon API Gateway with AWS Lambda integration.The service must run different versions for testing purposes.What would be the BEST way to accomplish this?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 recently deployed an AWS Lambda function.A developer notices an increase in the function throttle metrics in Amazon CloudWatch.What are the MOST operationally efficient solutions to reduce the function throttling? (Choose two.)Read More →

A current architecture uses many Lambda functions invoking one another as a large state machine.The coordination of this state machine is legacy custom code that breaks easily.Which AWS Service can help refactor and manage the state machine?Read More →

A developer is working on an application that is deployed on an Amazon EC2 instance.The developer needs a solution that will securely transfer files from the application to an Amazon S3 bucket.What should the developer do to meet these requirements in the MOST secure way?Read More →

A developer is using AWS CodeDeploy to automate a company’s application deployments to Amazon EC2.Which application specification file properties are required to ensure the software deployments do not fail? (Choose two.)Read More →

A company has a three-tier application that is deployed in Amazon Elastic Container Service (Amazon ECS).The application is using an Amazon RDS for MySQL DB instance.The application performs more database reads than writes.During times of peak usage, the application’s performance degrades.When this performance degradation occurs, the DB instance’s ReadLatency metric in Amazon CloudWatch increases suddenly.How should a developer modify the application to improve performance?Read More →

An ecommerce application is running behind an Application Load Balancer.A developer observes some unexpected load on the application during non-peak hours.The developer wants to analyze patterns for the client IP addresses that use the application.Which HTTP header should the developer use for this analysis?Read More →