Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 106 discussion

The correct answer would be A, as migrating the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate by using AWS App2Container and storing container images in Amazon Elastic Container Registry (Amazon ECR) would minimize the code changes and administrative overhead required to maintain the servers. This option would allow the company to use the Application Load Balancer (ALB) to interact with the application and the ECS task execution role permission to access the ECR image repository. Option B would require the application code to be migrated to a container that runs in AWS Lambda, which would require more code changes. Option C would require migrating the application to Amazon Elastic Kubernetes Service (Amazon EKS) which would require more administrative overhead. Option D would require configuring Lambda to use an Application Load Balancer (ALB), which is not a native feature of Lambda.

AWS App2Container (A2C) is a command line tool to help you lift and shift applications that run in your on-premises data centers or on virtual machines, so that they run in containers that are managed by Amazon ECS, Amazon EKS, or AWS App Runner. Moving legacy applications to containers is often the starting point toward application modernization. There are many benefits to containerization: • Reduces operational overhead and infrastructure costs • Increases development and deployment agility • Standardizes build and deployment processes across an organization https://docs.aws.amazon.com/app2container/latest/UserGuide/what-is-a2c.html AWS Fargate is a serverless, pay-as-you-go compute engine that lets you focus on building applications without managing servers. AWS Fargate is compatible with both Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS). https://aws.amazon.com/fargate/

ECS on AWS Fargate + App2Container + ALB: App2Container is made for this! It containerizes existing Java and .NET apps without needing code changes. Fargate is serverless for containers → no EC2 server management. Uses ALB for traffic — common and efficient for web apps. Amazon ECR for storing images. Just containerize and deploy → fits the scenario perfectly.

ECS on AWS Fargate + App2Container + ALB: App2Container is made for this! It containerizes existing Java and .NET apps without needing code changes. Fargate is serverless for containers → no EC2 server management. Uses ALB for traffic — common and efficient for web apps. Amazon ECR for storing images. Just containerize and deploy → fits the scenario perfectly.

A. Migrate the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate by using AWS App2Container. Store container images in Amazon Elastic Container Registry (Amazon ECR). Grant the ECS task execution role permission 10 access the ECR image repository. Configure Amazon ECS to use an Application Load Balancer (ALB). Use the ALB to interact with the application.

A, ECS Fargate

If the keyword 'Java' has not been mentioned, Answer A would have been considered as A2C (App2Container) is valid only for Java and .Net web applications

A = correct B = migrating app to container to be executed in a Lambda requires more code changes C = EKS with managed node group requires more operations than ECS with Fargate D = see B

Option A. Option C EKS not not valid because as using API Gateway is not needed and may require more code changes.

in the case of fargate capacity provider you should grant permissions to access ecr to task execution role, otherwise to ec2 instance roles which you run containers on

Sorry is A

C on eks because of complex VM dependecies

D because of complex vm dependencies

it's an A

Did anyone notice that part "has complex dependencies on VMs that are in the company's data center."? If the application has complex dependencies on VMs then how do we migrate it to containers or lambda? Another awkward question.

I still select A, but as someone that has migrated Java applications to AWS using AWS App2Container and RedHat S2i, this is a lot of pain.

Migrate the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate by using AWS App2Container.