DVA-C01 (Page 23)

A Developer is working on an application that handles 10MB documents that contain highly-sensitive data.The application will use AWS KMS to perform client- side encryption.What steps must be followed?Read More →

A developer has an application that is composed of many different AWS Lambda functions.The Lambda functions all use some of the same dependencies.To avoid security issues, the developer is constantly updating the dependencies of all of the Lambda functions.The result is duplicated effort for each function.How can the developer keep the dependencies of the Lambda functions up to date with the LEAST additional complexity?Read More →

A company uses AWS CloudFormation to deploy an application that uses an Amazon API Gateway REST API with AWS Lambda function integration.The application uses Amazon DynamoDB for data persistence.The application has three stages: development, testing, and production.Each stage uses its own DynamoDB table.The company has encountered unexpected issues when promoting changes to the production stage.The changes were successful in the development and testing stages.A developer needs to route 20% of the traffic to the new production stage API with the next production release.The developer needs to route the remaining 80% of the traffic to the existing production stage.The solution must minimize the number of errors that any single customer experiences.Which approach should the developer take to meet these requirements?Read More →

A company is creating a continuous integration and continuous delivery (CI/CD) process by using AWS CodePipeline for its application on AWS.The CI/CD process will pull code from an AWS CodeCommit repository, create the application infrastructure by using AWS CloudFormation, deploy the frontend code to an Amazon S3 bucket that is configured for static website hosting, and deploy the application backend on an Amazon Elastic Container Service (Amazon ECS) cluster.A developer needs to create a new CodePipeline stage that creates the application infrastructure.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A developer compiles an AWS Lambda function and packages the result as a .zip file.The developer uses the Functions page on the Lambda console to attempt to upload the local packaged .zip file.When pushing the package to Lambda, the console returns the following error:An error occurred (RequestEntityTooLargeException) when calling the UpdateFunctionCode operationWhich solutions can the developer use to publish the code? (Choose two.)Read More →

A company has an application that provides blog hosting services to its customers.The application includes an Amazon DynamoDB table with a primary key.The primary key consists of the customers’ UserName as a partition key and the NumberOfBlogs as a sort key.The application stores the TotalReactionsOnBlogs as an attribute on the same DynamoDB table.A developer needs to implement an operation to retrieve the top 10 customers based on the greatest number of reactions on their blogs.This operation must not consume the DynamoDB table’s existing read capacity.What should the developer do to meet these requirements in the MOST operationally efficient manner?Read More →

A developer wants to reduce risk when deploying a new version of an existing AWS Lambda function.To test the Lambda function, the developer needs to split the traffic between the existing version and the new version of the Lambda function.Which solution will meet these requirements?Read More →

A company uses Amazon DynamoDB as a data store for its order management system.The company frontend application stores orders in a DynamoDB table.The DynamoDB table is configured to send change events to a DynamoDB stream.The company uses an AWS Lambda function to log and process the incoming orders based on data from the DynamoDB stream.An operational review reveals that the order quantity of incoming orders is sometimes set to 0.A developer needs to create a dashboard that will show how many unique customers this problem affects each day.What should the developer do to implement the dashboard?Read More →

A developer is automating a new application deployment with AWS Serverless Application Model (AWS SAM).The new application has one AWS Lambda function and one Amazon S3 bucket.The Lambda function must access the S3 bucket to only read objects.How should the developer configure AWS SAM to grant the necessary read privilege to the S3 bucket?Read More →

A company stores the photographs in an Amazon S3 bucket.The company wants to resize the photographs automatically after writing the photographs to the S3 bucket.The company creates an AWS Lambda function to resize the photographs.Which solution will meet these requirements?Read More →