DVA-C02 (Page 39)

A company has an application that uses an Amazon S3 bucket for object storage.A developer needs to configure in-transit encryption for the S3 bucket.All the S3 objects containing personal data needs to be encrypted at rest with AWS Key Management Service (AWS KMS) keys, which can be rotated on demand.Which combination of steps will meet these requirements? (Choose two.)Read More →

A developer is setting up the deployment of application stacks to new test environments by using the AWS Cloud Development Kit (AWS CDK).The application contains the code for several AWS Lambda functions that will be deployed as assets.Each Lambda function is defined by using the AWS CDK Lambda construct library.The developer has already successfully deployed the application stacks to the alpha environment in the first account by using the AWS CDK CLI’s cdk deploy command.The developer is preparing to deploy to the beta environment in a second account for the first time.The developer makes no significant changes to the CDK code between deployments, but the initial deployment in the second account is unsuccessful and returns a NoSuchBucket error.Which command should the developer run before redeployment to resolve this error?Read More →

A company hosts a batch processing application on AWS Elastic Beanstalk with instances that run the most recent version of Amazon Linux.The application sorts and processes large datasets.In recent weeks, the application’s performance has decreased significantly during a peak period for traffic.A developer suspects that the application issues are related to the memory usage.The developer checks the Elastic Beanstalk console and notices that memory usage is not being tracked.How should the developer gather more information about the application performance issues?Read More →

A developer is creating an AWS Lambda function in VPC mode.An Amazon S3 event will invoke the Lambda function when an object is uploaded into an S3 bucket.The Lambda function will process the object and produce some analytic results that will be recorded into a file.Each processed object will also generate a log entry that will be recorded into a file.Other Lambda functions, AWS services, and on-premises resources must have access to the result files and log file.Each log entry must also be appended to the same shared log file.The developer needs a solution that can share files and append results into an existing file.Which solution should the developer use to meet these requirements?Read More →

A company has an application that is deployed on AWS Elastic Beanstalk.The application generates user-specific PDFs and stores the PDFs in an Amazon S3 bucket.The application then uses Amazon Simple Email Service (Amazon SES) to send the PDFs by email to subscribers.Users no longer access the PDFs 90 days after the PDFs are generated.The S3 bucket is not versioned and contains many obsolete PDFs.A developer must reduce the number of files in the S3 bucket by removing PDFs that are older than 90 days.Which solution will meet this requirement with the LEAST development effort?Read More →

A development team wants to immediately build and deploy an application whenever there is a change to the source code.Which approaches could be used to trigger the deployment? (Choose two.)Read More →

A developer has code that is stored in an Amazon S3 bucket.The code must be deployed as an AWS Lambda function across multiple accounts in the same AWS Region as the S3 bucket.An AWS CloudFormation template that runs for each account will deploy the Lambda function.What is the MOST secure way to allow CloudFormation to access the Lambda code in the S3 bucket?Read More →

An e-commerce web application that shares session state on-premises is being migrated to AWS.The application must be fault tolerant, natively highly scalable, and any service interruption should not affect the user experience.What is the best option to store the session state?Read More →

A developer is building an application that uses Amazon DynamoDB.The developer wants to retrieve multiple specific items from the database with a single API call.Which DynamoDB API call will meet these requirements with the MINIMUM impact on the database?Read More →

An ecommerce website uses an AWS Lambda function and an Amazon RDS for MySQL database for an order fulfillment service.The service needs to return order confirmation immediately.During a marketing campaign that caused an increase in the number of orders, the website’s operations team noticed errors for “too many connections” from Amazon RDS.However, the RDS DB cluster metrics are healthy.CPU and memory capacity are still available.What should a developer do to resolve the errors?Read More →