The correct architecture is an active-passive setup with the primary in one Availability Zone and a standby in another, using HANA System Replication in synchronous mode. This configuration meets the high availability requirement because synchronous HSR ensures zero data loss by committing transactions on both the primary and standby before confirming success, enabling automatic failover within minutes if a single AZ fails. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of Multi-AZ SAP HANA high availability architecture, often appearing as a distractor against active-active setups or asynchronous replication—common traps that risk data loss or split-brain scenarios. Remember the key: for true AZ resilience with SAP S/4HANA, you need synchronous replication and a dedicated standby in a different AZ. Memory tip: "Sync across AZs, no data loss in a daze."
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is deploying SAP S/4HANA on AWS and needs to ensure that the system can survive a single Availability Zone failure. Which architecture meets this requirement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy an active-passive setup with the primary in one AZ and a standby in another AZ, using replication
Option B is correct because an active-passive SAP HANA setup with the primary in one Availability Zone (AZ) and a standby in another AZ, using HANA System Replication (HSR) in synchronous mode, ensures zero data loss and automatic failover if a single AZ fails. This architecture meets the SAP S/4HANA requirement for high availability (HA) across AZs, as HSR replicates data at the database level, and the standby can take over within minutes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Store the database files on Amazon S3 and mount them to the EC2 instance
Why it's wrong here
S3 is not a block storage and cannot be used for live database files.
✓
Deploy an active-passive setup with the primary in one AZ and a standby in another AZ, using replication
Why this is correct
Active-passive with cross-AZ standby ensures availability if one AZ fails.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon RDS Multi-AZ for the SAP HANA database
Why it's wrong here
RDS Multi-AZ is not supported for SAP HANA.
✗
Deploy a single EC2 instance in one Availability Zone with EBS snapshots
Why it's wrong here
Single instance fails if the AZ fails.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon RDS Multi-AZ with SAP HANA HA, but RDS Multi-AZ is a managed service for non-SAP databases and does not support SAP HANA, which requires self-managed HSR on EC2 for cross-AZ failover.
Detailed technical explanation
How to think about this question
HANA System Replication (HSR) in synchronous mode uses a log-based replication mechanism where every committed transaction is written to the primary’s redo log and then replicated to the standby before the commit is acknowledged to the application. This ensures Recovery Point Objective (RPO) of zero and Recovery Time Objective (RTO) typically under 5 minutes, but requires low-latency network connectivity (sub-1ms) between AZs, which AWS provides within a region. In a real-world scenario, if the primary AZ experiences a power outage, the SAP S/4HANA application layer (also deployed across AZs) can automatically reconnect to the standby HANA instance using the virtual IP or DNS endpoint managed by a cluster solution like Pacemaker or AWS Elastic Load Balancer.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy an active-passive setup with the primary in one AZ and a standby in another AZ, using replication — Option B is correct because an active-passive SAP HANA setup with the primary in one Availability Zone (AZ) and a standby in another AZ, using HANA System Replication (HSR) in synchronous mode, ensures zero data loss and automatic failover if a single AZ fails. This architecture meets the SAP S/4HANA requirement for high availability (HA) across AZs, as HSR replicates data at the database level, and the standby can take over within minutes.
What should I do if I get this PAS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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