PAS-C01 Migration Practice Question
An organization is migrating a legacy Windows-based .NET application to AWS. The application currently uses IIS and SQL Server on a single server. They want to minimize changes to the application code. Which migration strategy is most appropriate?
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 with the same OS and database
Rehosting (lift-and-shift) involves moving the application to AWS as-is, typically using Amazon EC2, which minimizes code changes. Option B is correct. Option A (Replatform) would involve moving to Amazon RDS for SQL Server and Elastic Beanstalk, which may require some configuration changes. Option C (Refactor) would require significant code changes to adopt microservices. Option D (Repurchase) means buying a new SaaS product, which is not minimal change.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Replatform by moving to Amazon RDS for SQL Server and Elastic Beanstalk
Why it's wrong here
Replatforming requires changes to the application configuration and may break compatibility.
- ✓
Rehost the application on Amazon EC2 with the same OS and database
Why this is correct
Rehosting moves the workload as-is, minimizing code changes.
- ✗
Refactor the application to use a microservices architecture
Why it's wrong here
Refactoring involves significant code changes.
- ✗
Repurchase by moving to a SaaS-based application
Why it's wrong here
Repurchasing introduces a new product, not a minimal change.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 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 PAS-C01 exam.