AWS Certified Solutions Architect – Professional — Question 925

A company runs a web application that provides an HTTP API. The API uses a MySQL-compatible SQL database for session persistence. The existing workload runs in an on-premises environment on a Kubernetes cluster. The company has significant operational overhead associated with managing servers on premises and is considering a migration to AWS.
The company wants to remove the need to manage servers or instances by using as many managed AWS offerings as possible. The company does not want to introduce significant changes to the web application or the HTTP API. A solutions architect must recommend different architecture solutions that the company can use to achieve these goals.
Which solutions will meet these requirements? (Choose three.)

Answer options

• A. Create a Kubernetes cluster on AWS. Deploy an Amazon Aurora Serverless cluster. Run the web application on Kubernetes by using a managed node group. Use a containerized application that runs on Kubernetes to deploy an Application Load Balancer that exposes the web application.
• B. Create an Auto Scaling group for the web application. Run the web application and a MySQL database on Amazon EC2 general purpose instances. Deploy an Application Load Balancer (ALB). Associate the ALB with the Auto Scaling group.
• C. Create a new Amazon Elastic Container Service (Amazon ECS) service for the web application. Deploy MySQL by using Amazon RDS. Run the web application as tasks in Amazon ECS with a serverless compute engine. Configure health checks. Use AWS Cloud Map and DNS to direct traffic to healthy tasks for the service.
• D. Create a Kubernetes cluster on AWS. Deploy an Amazon Aurora Serverless cluster. Run the web application by using AWS Fargate and Amazon Elastic Kubernetes Service (Amazon EKS). Use containerized application that runs on Kubernetes to deploy an Application Load Balancer that exposes the web application.
• E. Create a new Amazon Elastic Container Service (Amazon ECS) service for the web application. Deploy a MySQL-compatible Amazon Aurora cluster. Run the web application as tasks by using Amazon ECS with EXTERNAL launch. Deploy an Application Load Balancer (ALB). Associate the ALB with the ECS service.
• F. Create an Amazon Lightsail containers deployment for the web application. Create a highly available Lightsail database in MySQL mode. Specify a public endpoint for the container deployment. Add a custom domain for the public endpoint.

Correct answer: C, D, F

Explanation

Options C, D, and F are correct because they leverage fully managed or serverless compute options (AWS Fargate for ECS/EKS and Amazon Lightsail) that eliminate server management overhead while keeping the containerized application architecture. Options A and B are incorrect because they still require managing EC2 instances (via managed node groups or standard EC2 instances). Option E is incorrect because the ECS EXTERNAL launch type is used for registering on-premises servers, which does not eliminate on-premises server management.