A company uses an AWS CloudFormation template to deploy an Amazon Elastic Container Service (Amazon ECS) service into a production environment. The template includes an Amazon S3 bucket that is named by using a common prefix with the CloudFormation stack name.The company uses the same template to create temporary environments for development and continuous integration. Developers can create environments successfully, but they receive errors from CloudFormation when they attempt to delete the environments. The developers often need to delete and recreate stacks with the same names as part of the development and testing process.Which combination of steps should a solutions architect take to modify the solution to resolve this issue? (Choose two.)
A media storage application uploads user photos to Amazon S3 for processing by AWS Lambda functions. Application state is stored in Amazon DynamoDB tables. Users are reporting that some uploaded photos are not being processed properly. The application developers trace the logs and find that Lambda is experiencing photo processing issues when thousands of users upload photos simultaneously. The issues are the result of Lambda concurrency limits and the performance of DynamoDB when data is saved.Which combination of actions should a solutions architect take to increase the performance and reliability of the application? (Choose two.)
A solutions architect has deployed a web application that serves users across two AWS Regions under a custom domain. The application uses Amazon Route 53 latency-based routing. The solutions architect has associated weighted record sets with a pair of web servers in separate Availability Zones for each Region.The solutions architect runs a disaster recovery scenario. When all the web servers in one Region are stopped. Route 53 does not automatically redirect users to the other Region.Which of the following are possible root causes of this issue? (Choose two.)
A company runs an unauthenticated static website (www.example.com) that includes a registration form for users. The website uses Amazon S3 for hosting and uses Amazon CloudFront as the content delivery network with AWS WAF configured. When the registration form is submitted, the website calls an Amazon API Gateway API endpoint that invokes an AWS Lambda function to process the payload and forward the payload to an external API call.During testing, a solutions architect encounters a cross-origin resource sharing (CORS) error. The solutions architect confirms that the CloudFront distribution origin has the Access-Control-Allow-Origin header set to www.example.com.What should the solutions architect do to resolve the error?
A company is developing a new game app for mobile devices. The app has two user tiers: one tier for free-play users and another tier for premium users.The company currently uses custom identity authentication across its apps. The company wants to continue to use custom authentication if possible. However, the company's custom identity provider (IdP) is not compatible with either the SAML or Open ID Connect (OIDC) standards. A solutions architect needs to design an authentication approach that makes it easy to transition free-play users to premium users.Which design will meet these requirements with the LEAST development effort?
A company is planning to migrate an Amazon RDS for Oracle database to an RDS for PostgreSQL DB instance in another AWS account. A solutions architect needs to design a migration strategy that will require no downtime and that will minimize the amount of time necessary to complete the migration. The migration strategy must replicate all existing data and any new data that is created during the migration. The target database must be identical to the source database at completion of the migration process.All applications currently use an Amazon Route 53 CNAME record as their endpoint for communication with the RDS for Oracle DB instance. The RDS for Oracle DB instance is in a private subnet.Which combination of steps should the solutions architect take to meet these requirements? (Choose three.)
