SAP-C02 · Question #687
A company has an application that has a web frontend. The application runs in the company's on- premises data center and requires access to file storage for critical data. The application runs on…
The correct answer is B. Migrate the application to Amazon EC2 instances in three Availability Zones. Use Amazon Elastic. Migrate an on-premises web application with file storage and load balancer to AWS quickly, with minimal architectural changes, while ensuring high availability.
Question
A company has an application that has a web frontend. The application runs in the company's on- premises data center and requires access to file storage for critical data. The application runs on three Linux VMs for redundancy. The architecture includes a load balancer with HTTP request- based routing. The company needs to migrate the application to AWS as quickly as possible. The architecture on AWS must be highly available. Which solution will meet these requirements with the FEWEST changes to the architecture?
Options
- AMigrate the application to Amazon Elastic Container Service (Amazon ECS) containers that use
- BMigrate the application to Amazon EC2 instances in three Availability Zones. Use Amazon Elastic
- CMigrate the application to Amazon Elastic Kubernetes Service (Amazon EKS) containers that use
- DMigrate the application to Amazon EC2 instances in three AWS Regions. Use Amazon Elastic
How the community answered
(64 responses)- A6% (4)
- B81% (52)
- C3% (2)
- D9% (6)
Why each option
Migrate an on-premises web application with file storage and load balancer to AWS quickly, with minimal architectural changes, while ensuring high availability.
Migrating to Amazon ECS containers requires containerizing the application, which is a significant architectural change beyond simply lifting and shifting VMs.
Migrating to Amazon EC2 instances across three Availability Zones directly mirrors the existing VM architecture for redundancy, and Amazon Elastic File System (EFS) provides shared, highly available file storage that can be accessed by multiple EC2 instances, meeting the file storage and high availability requirements with fewest changes.
Migrating to Amazon EKS containers (Kubernetes) is an even more substantial architectural change than ECS, involving containerization and orchestration platform adoption.
Deploying EC2 instances across three AWS Regions introduces global distribution and complexity that is not specified by the 'fewest changes' requirement for a single-region high availability setup.
Concept tested: Lift-and-shift migration to EC2 with shared file storage
Source: https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html
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