PAS-C01 Migration Practice Question
A company is migrating its SAP system from on-premises to AWS. The system uses a shared filesystem (NFS) for transport directories and logs. The company wants to use AWS storage services to provide a similar shared filesystem. Which storage solution is MOST appropriate for this migration?
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 EFS (Elastic File System)
Amazon EFS provides a managed NFS filesystem that can be mounted by multiple EC2 instances, making it suitable for SAP transport directories that require shared POSIX/NFS access. Option B (Amazon S3 with a mount point via s3fs-fuse) is not ideal because S3 is object storage and s3fs-fuse does not provide full POSIX compliance or consistent NFS semantics, leading to performance and concurrency issues. Option C (Amazon FSx for Windows File Server) uses SMB protocol, not NFS, so it is not appropriate for SAP systems that expect NFS. Option D (Amazon EBS with multi-attach enabled) allows attaching a single volume to multiple instances but is limited to a few instances, requires a cluster-aware filesystem, and is more complex to manage than EFS for shared filesystem use cases.
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 EFS (Elastic File System)
Why this is correct
EFS provides a scalable NFS filesystem that can be shared across multiple EC2 instances.
- ✗
Amazon S3 with a mount point via s3fs-fuse
Why it's wrong here
S3 is object storage and not recommended for NFS workloads due to performance and consistency issues.
- ✗
Amazon FSx for Windows File Server
Why it's wrong here
FSx for Windows File Server uses SMB, not NFS; SAP typically requires NFS.
- ✗
Amazon EBS with multi-attach enabled
Why it's wrong here
EBS multi-attach is limited to a few instance types and not suitable for SAP shared directories.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
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.