PAS-C01 Multi-AZ deployment Practice Question
Which THREE considerations are important when designing a SAP workload for high availability on AWS? (Select three.)
⚠ Common exam trap
The trap here is that candidates sometimes exclude backup strategies from high availability design, thinking they are separate from HA. However, backup and disaster recovery are integral to ensuring data availability in an HA architecture.
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
✓
Deploy the SAP application across multiple Availability Zones
In SAP high availability on AWS, deploying across multiple Availability Zones (Option B) protects against AZ failures, SAP HANA System Replication (Option E) ensures database failover, and using Amazon S3 for long-term backup storage (Option D) is a critical component of disaster recovery, which is integral to overall high availability design. Option A (EBS Multi-Attach) is not a standard HA practice due to limitations with concurrent writes and cluster file system requirements; typical shared storage uses Amazon EFS or FSx. Option C (single large instance) provides no redundancy, thus is not HA.
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 EBS Multi-Attach to share volumes between two EC2 instances
Why it's wrong here
EBS Multi-Attach is rarely used in SAP HA designs because it has limitations with concurrent write access and requires cluster-aware file systems; common SAP HA architectures use shared storage like Amazon EFS or FSx for Lustre, making this option incorrect.
- ✓
Deploy the SAP application across multiple Availability Zones
Why this is correct
Deploying across multiple Availability Zones provides redundancy and failover capability, which is a core HA principle for SAP systems.
- ✗
Run the SAP system on a single large instance
Why it's wrong here
Running on a single large instance introduces a single point of failure and does not provide high availability.
- ✓
Use Amazon S3 for long-term backup storage
Why this is correct
Using Amazon S3 for long-term backup storage is an important consideration for high availability as it ensures data durability and availability for recovery, forming part of a comprehensive HA and disaster recovery strategy.
- ✓
Configure SAP HANA System Replication between primary and standby
Why this is correct
SAP HANA System Replication between primary and standby instances ensures database high availability and automatic failover.
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.