A company is running a two-tier web-based application in an on-premises data center. The application layer consists of a single server running a stateful application. The application connects to a PostgreSQL database running on a separate server The application's user base is expected to grow significantly, so the company is migrating the application and database to AWS The solution will use Amazon Aurora PostgreSQL. Amazon EC2 Auto Scaling, and Elastic Load Balancing.
Which solution will provide a consistent user experience that will allow the application and database tiers to scale?
A company is planning a large event where a promotional offer will be introduced The company's website is hosted on AWS and backed by an Amazon RDS for PostgreSQL DB instance The website explains the promotion and includes a sign-up page that collects user information and preferences Management expects large and unpredictable volumes of traffic periodically which will create many database writes A solutions architect needs to build a solution that does not change the underlying data model and ensures that submissions are not dropped before they are committed to the database
Which solutions meets these requirements'?
A company hosts its primary API on AWS by using an Amazon API Gateway API and AWS Lambda functions that contain the logic for the API methods. The company s internal applications use the API for core functionality and business logic. The company's customers use the API to access data from their accounts Several customers also have access to a legacy API that is running on a single standalone Amazon EC2 instance.
The company wants to increase the security for these APIs to better prevent denial of service (DoS) attacks, check for vulnerabilities, and guard against common exploits
What should a solutions architect do to meet these requirements?
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