The answer is to deploy HANA System Replication in synchronous mode and cluster the ASCS and PAS instances with Pacemaker across Availability Zones. This combination ensures mission-critical high availability by guaranteeing that every committed transaction is written to both the primary and secondary HANA databases before the commit is acknowledged, achieving near-zero data loss with an RPO of 0. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of how synchronous replication and Pacemaker clustering work together to minimize data loss during an AZ failure, a common trap being to confuse synchronous with asynchronous replication or to forget that ASCS clustering is required for a complete HA stack. A useful memory tip is “Sync for zero, Pace for place”—synchronous replication gives you zero data loss, while Pacemaker places your application instances across AZs for automatic failover.
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. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 a mission-critical SAP S/4HANA system on AWS. They need to ensure the highest level of availability and minimize data loss. Which TWO strategies should they implement? (Choose two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set up HANA System Replication in synchronous mode across two Availability Zones
Option D is correct because HANA System Replication in synchronous mode ensures that every committed transaction is written to the primary and replicated to a secondary HANA instance before the commit is acknowledged. This provides near-zero data loss (RPO=0) and, combined with automatic failover, supports high availability across Availability Zones.
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.
✗
Use EC2 Spot Instances for the primary application server
Why it's wrong here
Spot Instances can be interrupted, not suitable for mission-critical systems.
✗
Configure automated EBS snapshots every 5 minutes
Why it's wrong here
Snapshots are for backup, not HA; 5-minute snapshots may impact performance.
✗
Use Amazon RDS Multi-AZ for the HANA database
Why it's wrong here
HANA is not supported on RDS.
✓
Set up HANA System Replication in synchronous mode across two Availability Zones
Why this is correct
Synchronous replication ensures no data loss and automatic failover.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Deploy the ASCS and PAS instances in a cluster with Pacemaker across AZs
Why this is correct
Pacemaker cluster provides HA for SAP Central Services and application layer.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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 database replication, but SAP HANA is not supported on RDS and must be managed directly on EC2 with HANA System Replication.
Detailed technical explanation
How to think about this question
HANA System Replication in synchronous mode uses the 'SYNC' or 'SYNCMEM' replication mode, where the primary waits for the secondary to confirm log writes before committing to the application. This requires low-latency network connectivity (typically <1 ms round-trip time) between AZs to avoid performance impact. The Pacemaker cluster for ASCS and PAS (Option E) manages virtual IP addresses and resource failover, ensuring that SAP central services and application servers remain available even if an entire AZ fails.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: Set up HANA System Replication in synchronous mode across two Availability Zones — Option D is correct because HANA System Replication in synchronous mode ensures that every committed transaction is written to the primary and replicated to a secondary HANA instance before the commit is acknowledged. This provides near-zero data loss (RPO=0) and, combined with automatic failover, supports high availability across Availability Zones.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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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