SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a legacy .NET application from on-premises Windows Server to AWS. The application uses Windows authentication and requires a shared file share for configuration files. The company wants to minimize code changes. Which combination of AWS services should be used?
⚠ Common exam trap
The trap here is assuming that any file storage service can replace a Windows file share, but only Amazon FSx for Windows File Server supports SMB and Active Directory integration required for Windows authentication.
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
✓
Amazon EC2 Windows instances joined to AWS Managed Microsoft AD, and Amazon FSx for Windows File Server.
To minimize code changes, the application should run on EC2 Windows instances that are domain-joined to AWS Managed Microsoft AD, which provides Windows authentication. Amazon FSx for Windows File Server offers a managed SMB file share that integrates with Active Directory, replacing the on-premises file share without application modifications. This combination preserves the existing authentication and file access mechanisms.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon WorkSpaces for application hosting, and Amazon FSx for Lustre for configuration files.
Why it's wrong here
Amazon WorkSpaces is a virtual desktop service, not intended for hosting server applications. Amazon FSx for Lustre is a high-performance file system for Linux workloads and does not support Windows SMB or Active Directory integration, so it cannot serve as a Windows file share.
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Amazon ECS with Windows containers, and Amazon EFS for configuration files.
Why it's wrong here
Amazon ECS supports Windows containers, but Windows authentication integration is complex, and Amazon EFS is not natively compatible with Windows SMB file shares. The application would require modifications to use EFS, and Windows authentication may not work seamlessly.
- ✓
Amazon EC2 Windows instances joined to AWS Managed Microsoft AD, and Amazon FSx for Windows File Server.
Why this is correct
Amazon EC2 Windows instances can be domain-joined to AWS Managed Microsoft AD, enabling Windows authentication. Amazon FSx for Windows File Server provides a fully managed Windows file share that supports SMB protocol and integrates with Active Directory, meeting the shared file share requirement with minimal changes.
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AWS Lambda with .NET Core, and Amazon S3 for configuration files.
Why it's wrong here
AWS Lambda does not support Windows authentication natively, and .NET Framework applications may not be compatible with .NET Core without modifications. Amazon S3 is object storage and not a Windows file share, so the application would require code changes to access configuration files.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Amazon Web Services exam blueprint
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.