PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is migrating an SAP S/4HANA system to AWS. The system requires high availability across two Availability Zones. Which AWS service should be used to attach a block-level storage volume that can be concurrently accessed by two EC2 instances in active/passive mode?
⚠ Common exam trap
It's easy for candidates to assume Amazon EBS Multi-Attach can work across Availability Zones, but it is strictly limited to instances within the same AZ, making it unsuitable for multi-AZ high availability in SAP workloads.
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
✓
Use Amazon FSx for NetApp ONTAP to provide a shared block storage volume accessible from both AZs.
Amazon FSx for NetApp ONTAP provides a shared block-level storage volume that can be concurrently accessed by multiple EC2 instances across different Availability Zones using the iSCSI protocol. In an active/passive SAP S/4HANA setup, this allows the passive instance to mount the same storage volume and take over if the active instance fails, meeting the high-availability requirement across two AZs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use Amazon FSx for NetApp ONTAP to provide a shared block storage volume accessible from both AZs.
Why this is correct
FSx for NetApp ONTAP supports shared block storage across AZs.
- ✗
Use Amazon FSx for Windows File Server with a multi-AZ file system.
Why it's wrong here
FSx for Windows File Server is file-level storage, not block-level.
- ✗
Use Amazon S3 as a shared block storage device.
Why it's wrong here
S3 is object storage, not block storage.
- ✗
Use Amazon EBS Multi-Attach to attach a single EBS volume to both EC2 instances across AZs.
Why it's wrong here
EBS Multi-Attach is limited to a single AZ.
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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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.