PAS-C01 Migration Practice Question
A company is migrating an SAP HANA system to AWS using SAP HANA System Replication (HSR). The migration must have a Recovery Point Objective (RPO) of less than 15 minutes and a Recovery Time Objective (RTO) of less than 2 hours. Which TWO actions should the company take to meet these objectives?
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 target system in a different Availability Zone
To meet an RPO of less than 15 minutes and an RTO of less than 2 hours for an SAP HANA migration using HSR, the company should deploy the target system in a different Availability Zone (option A) and configure SAP HANA System Replication in synchronous mode (option E). Synchronous replication ensures that data is written to both source and target before the transaction is committed, providing near-zero RPO. In the event of a failure, the target can be promoted quickly, meeting the RTO of under 2 hours. Option B (using EBS snapshots) would not achieve the required RPO as snapshots are periodic and not continuous. Option C (placing the target in a different region) would introduce higher latency and potential RPO/RTO challenges. Option D (single Availability Zone) does not provide redundancy and would increase risk.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Deploy the target system in a different Availability Zone
Why this is correct
Multi-AZ deployment enables fast failover and meets RTO requirements.
- ✗
Use Amazon EBS snapshots for data replication
Why it's wrong here
EBS snapshots are periodic and cannot achieve <15 min RPO.
- ✗
Place the target system in a different AWS Region
Why it's wrong here
Cross-region replication increases latency and may not meet RPO/RTO.
- ✗
Use a single Availability Zone for both source and target
Why it's wrong here
Single AZ increases risk of simultaneous failure, impacting RTO.
- ✓
Configure SAP HANA System Replication in synchronous mode
Why this is correct
Synchronous mode provides the lowest RPO, but may impact performance; for <15 min RPO, synchronous is suitable.
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Written by Johnson Ajibi, MSc IT Security
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