SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a legacy application that uses SOAP web services to AWS. The application currently runs on a single on-premises server. The company wants to minimize changes and reduce operational overhead. Which approach should the company take?
⚠ Common exam trap
A common mix-up: candidates assume modernizing to serverless or containers is always better, but the question explicitly requires minimizing changes, making rehosting the correct choice despite its perceived lack of modernization.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Rehost the application on Amazon EC2 using AWS Application Migration Service (MGN).
Rehosting the application on Amazon EC2 using AWS Application Migration Service (MGN) minimizes changes by lifting and shifting the entire on-premises server, including the SOAP web services, to AWS with minimal modification. This approach reduces operational overhead by automating server replication and cutover, avoiding the need to refactor or containerize the application, which aligns with the requirement to minimize changes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Refactor the SOAP web services to RESTful APIs and deploy on Amazon API Gateway and AWS Lambda.
Why it's wrong here
Rewriting SOAP to REST and deploying on API Gateway with Lambda changes the application's protocol contract and execution model, contradicting the minimise-changes requirement. It is tempting because serverless removes patching, and it would be correct for a new cloud-native API with no legacy clients.
- ✗
Containerize the application and deploy it on Amazon ECS using Fargate.
Why it's wrong here
Containerising a SOAP application on ECS Fargate still requires rewriting packaging, networking and deployment, adding operational work rather than reducing it. It is tempting because Fargate removes server management, and it would be correct for a stateless service already built as containers.
- ✓
Rehost the application on Amazon EC2 using AWS Application Migration Service (MGN).
Why this is correct
Rehosting on Amazon EC2 with AWS Application Migration Service lifts and shifts the SOAP application unchanged, satisfying the minimal-changes constraint. MGN replicates the existing server to AWS without refactoring, and EC2 keeps operational overhead lower than replatforming or rebuilding the legacy SOAP stack.
- ✗
Use AWS Database Migration Service (DMS) to migrate the database and redeploy the application manually.
Why it's wrong here
DMS migrates database contents only; it does nothing for the application tier, so the SOAP service still needs manual redeployment and ongoing server management. It is tempting because DMS is the standard tool for database moves, and it would be correct when only the data store is being migrated.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.