DVA-C02 (Page 31)

A company uses AWS X-Ray to monitor a serverless application.The components of the application have different request rates.The user interactions and transactions are important to trace, but they are low in volume.The background processes such as application health checks, polling, and connection maintenance generate high volumes of read-only requests.Currently, the default X-Ray sampling rules are universal for all requests.Only the first request per second and some additional requests are recorded.This setup is not helping the company review the requests based on service or request type.A developer must configure rules to trace requests based on service or request properties.The developer must trace the user interactions and transactions without wasting effort recording minor background tasks.Which solution will meet these requirements?Read More →

A company is creating an application that processes .csv files from Amazon S3.A developer has created an S3 bucket.The developer has also created an AWS Lambda function to process the .csv files from the S3 bucket.Which combination of steps will invoke the Lambda function when a .csv file is uploaded to Amazon S3? (Choose two.)Read More →

A company moved some of its secure files to a private Amazon S3 bucket that has no public access.The company wants to develop a serverless application that gives its employees the ability to log in and securely share the files with other users.Which AWS feature should the company use to share and access the files securely?Read More →

A company wants to deploy and maintain static websites on AWS.Each website’s source code is hosted in one of several version control systems, including AWS CodeCommit, Bitbucket, and GitHub.The company wants to implement phased releases by using development, staging, user acceptance testing, and production environments in the AWS Cloud.Deployments to each environment must be started by code merges on the relevant Git branch.The company wants to use HTTPS for all data exchange.The company needs a solution that does not require servers to run continuously.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A developer wants to expand an application to run in multiple AWS Regions.The developer wants to copy Amazon Machine Images (AMIs) with the latest changes and create a new application stack in the destination Region.According to company requirements, all AMIs must be encrypted in all Regions.However, not all the AMIs that the company uses are encrypted.How can the developer expand the application to run in the destination Region while meeting the encryption requirement?Read More →

A developer is creating an application that must transfer expired items from Amazon DynamoDB to Amazon S3.The developer sets up the DynamoDB table to automatically delete items after a specific TTL.The application must process the items in DynamoDB and then must store the expired items in Amazon S3.The entire process, including item processing and storage in Amazon S3, will take 5 minutes.Which solution will meet these requirements with the LEAST operational overhead?Read More →

A company has a monolithic desktop-based application that processes images.A developer is converting the application into an AWS Lambda function by using Python.Currently, the desktop application runs every 5 minutes to process the latest image from an Amazon S3 bucket.The desktop application completes the image processing task within 1 minute.During testing on AWS, the developer notices that the Lambda function runs at the specified 5-minute interval.However, the Lambda function takes more than 2 minutes to complete the image processing task.The developer needs a solution that will improve the Lambda function’s performance.Which solution will meet this requirement?Read More →

A company is releasing a new feature.Users can request early access to the new feature by using an application form.The company expects a surge of requests when the application form becomes available.Each request will be stored as an item in an Amazon DynamoDB table.Each item will contain the user’s username, the submission date, and a validation status of UNVALIDATED.VALID, or NOT VALID.Each item also will contain the user’s rating of the process on a scale of 1 to 5.Each user can submit one request.For the DynamoDB table, the developer must choose a partition key that will give the workload well-distributed records across partitions.Which DynamoDB attribute will meet these requirements?Read More →

A developer works for a company that only has a single pre-production AWS account with an AWS CloudFormation AWS Serverless Application Model (AWS SAM) stack.The developer made changes to an existing AWS Lambda function specified in the AWS SAM template and additional Amazon Simple Notification service (Amazon SNS) topics.The developer wants to do a one-time deploy of the changes to test if the changes are working.The developer does not want to impact the existing pre-production application that is currently being used by other team members as part of the release pipeline.Which solution will meet these requirements?Read More →

A developer needs to deploy an application in three AWS Regions by using AWS CloudFormation.Each Region will use an AWS Elastic Beanstalk environment with an Application Load Balancer (ALB).The developer wants to use AWS Certificate Manager (ACM) to deploy SSL certificates to each ALB.Which solution will meet these requirements?Read More →