- A
Use AWS S3 Cross-Region Replication to copy database backups every 15 minutes.
Why wrong: Backups take time and RPO may not be met.
- B
Configure SAP HANA System Replication (HSR) to an EC2 instance in us-west-2 with log replication in sync mode.
HSR provides near real-time replication, meeting RPO.
- C
Take EBS snapshots of the HANA data volume every hour and copy them to us-west-2.
Why wrong: RPO of 1 hour is too long.
- D
Use AWS Database Migration Service (DMS) to continuously replicate changes to a HANA instance in us-west-2.
Why wrong: DMS is not optimized for HANA DR.
Question 1,414 of 1,733
SAP HANA Disaster Recovery with HSR Synchronous Mode — RPO 15 min, RTO 4 hr
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 designing a disaster recovery (DR) strategy for SAP S/4HANA on AWS. The primary site is in us-east-1 and the DR site is in us-west-2. The SAP HANA database is 2 TB and requires Recovery Point Objective (RPO) of 15 minutes and Recovery Time Objective (RTO) of 4 hours. Which solution meets these requirements?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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
✓
Configure SAP HANA System Replication (HSR) to an EC2 instance in us-west-2 with log replication in sync mode.
SAP HANA System Replication (HSR) with synchronous log replication meets the RPO of 15 minutes and RTO of 4 hours because it continuously replicates transaction logs to the DR site in us-west-2, ensuring near-zero data loss. In sync mode, the primary waits for the secondary to acknowledge log writes, which keeps the DR database consistent and ready for takeover within minutes, well under the 4-hour RTO. This is the only option that provides continuous, database-level replication with the required recovery objectives.
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 AWS S3 Cross-Region Replication to copy database backups every 15 minutes.
Why it's wrong here
Backups take time and RPO may not be met.
- ✓
Configure SAP HANA System Replication (HSR) to an EC2 instance in us-west-2 with log replication in sync mode.
Why this is correct
HSR provides near real-time replication, meeting RPO.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Take EBS snapshots of the HANA data volume every hour and copy them to us-west-2.
Why it's wrong here
RPO of 1 hour is too long.
- ✗
Use AWS Database Migration Service (DMS) to continuously replicate changes to a HANA instance in us-west-2.
Why it's wrong here
DMS is not optimized for HANA DR.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse asynchronous backup-based solutions (like S3 CRR or EBS snapshots) with continuous replication, failing to recognize that only SAP HANA System Replication provides the sub-15-minute RPO and fast failover required for enterprise SAP DR scenarios.
Detailed technical explanation
How to think about this question
SAP HANA System Replication uses a log-based replication mechanism where the primary HANA instance sends redo log entries to the secondary instance over a TCP/IP connection. In synchronous mode (sync), the primary waits for an acknowledgment from the secondary that the log has been written to persistent storage before committing the transaction, which ensures zero data loss but adds latency; for cross-region setups, this latency must be carefully monitored to avoid impacting production performance. The takeover process involves promoting the secondary to primary using the 'hdbnsutil -sr_enable --name=<SID>' command, which typically completes in minutes, making it suitable for a 4-hour RTO even with a 2 TB database.
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.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
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: Configure SAP HANA System Replication (HSR) to an EC2 instance in us-west-2 with log replication in sync mode. — SAP HANA System Replication (HSR) with synchronous log replication meets the RPO of 15 minutes and RTO of 4 hours because it continuously replicates transaction logs to the DR site in us-west-2, ensuring near-zero data loss. In sync mode, the primary waits for the secondary to acknowledge log writes, which keeps the DR database consistent and ready for takeover within minutes, well under the 4-hour RTO. This is the only option that provides continuous, database-level replication with the required recovery objectives.
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: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
4 more ways this is tested on PAS-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a disaster recovery solution for SAP S/4HANA. They need to meet an RPO of 15 minutes and an RTO of 2 hours. Which THREE components should be included in the DR plan? (Choose 3.)
hard- A.EBS snapshots taken every 15 minutes
- ✓ B.SAP HANA System Replication in async mode
- C.AWS CloudEndure Disaster Recovery
- ✓ D.Amazon Route 53 DNS failover
- ✓ E.Pre-built AMIs for SAP application servers
Why B: SAP HANA System Replication in async mode is correct because it can achieve an RPO of 15 minutes by asynchronously replicating log buffers from the primary to the DR HANA instance, and combined with a pre-configured DR system, it supports an RTO of 2 hours. This native SAP replication mechanism is optimized for HANA databases and avoids the overhead of storage-level snapshots or third-party tools.
Variation 2. A company is designing a disaster recovery (DR) strategy for SAP S/4HANA on AWS. The primary region is us-east-1 and the DR region is us-west-2. The RPO is 15 minutes and RTO is 1 hour. Which approach should be used to replicate SAP HANA data?
medium- ✓ A.Configure HANA System Replication across regions
- B.Use AWS Database Migration Service (DMS) with ongoing replication
- C.Use Amazon S3 Cross-Region Replication for backup files
- D.Use AWS Backup cross-region copy of EBS snapshots
Why A: HANA System Replication (HSR) is the only option that meets the 15-minute RPO and 1-hour RTO for SAP HANA data replication across regions. HSR uses log-based asynchronous replication to continuously ship redo logs to the DR region, enabling near-real-time data synchronization with minimal data loss. This is the native SAP-recommended method for cross-region DR of SAP HANA databases.
Variation 3. A company is designing a disaster recovery (DR) strategy for SAP S/4HANA on AWS. The primary site is in us-east-1. They want a secondary site in us-west-2 with a Recovery Point Objective (RPO) of 15 minutes and Recovery Time Objective (RTO) of 2 hours. Which solution meets these requirements with the LEAST operational overhead?
medium- A.Take hourly backups to S3 and restore in us-west-2 when needed.
- B.Use HANA System Replication to us-west-2 with manual failover.
- C.Use HANA System Replication in async mode to us-west-2.
- ✓ D.Use HANA System Replication in sync mode with automatic failover to us-west-2.
Why D: Option D is correct because HANA System Replication in synchronous mode with automatic failover provides the lowest RPO (near-zero data loss) and meets the 15-minute RPO and 2-hour RTO requirements with minimal operational overhead. Automatic failover eliminates manual intervention, reducing recovery time and complexity compared to other options.
Variation 4. A company is designing a disaster recovery strategy for SAP S/4HANA. The primary site is in us-east-1 and the DR site is in us-west-2. The RPO must be less than 30 minutes and RTO less than 2 hours. Which approach meets these requirements?
hard- ✓ A.Configure HANA System Replication in asynchronous mode with automatic takeover
- B.Configure HANA System Replication in synchronous mode across regions
- C.Take nightly backups to S3 and restore in DR
- D.Use AWS Backup to copy daily snapshots to DR region
Why A: Option A is correct because HANA System Replication in asynchronous mode with automatic takeover meets the RPO of less than 30 minutes and RTO of less than 2 hours. Asynchronous replication provides near-real-time data transfer across AWS regions with minimal impact on primary performance, and automatic takeover enables fast failover to the DR instance, satisfying the RTO requirement.
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Last reviewed: Jun 24, 2026
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