PAS-C01 Technology Practice Question
A company is designing an SAP HANA disaster recovery solution on AWS. The primary system is in us-east-1, and the DR system must be in us-west-2. The RPO is 15 minutes, and RTO is 1 hour. Which TWO approaches meet these requirements? (Choose TWO.)
⚠ Common exam trap
It's easy for candidates to confuse server-level replication (MGN) or backup-based approaches (EBS snapshots, S3 replication) with database-level replication, failing to recognize that only HSR and DMS provide the transaction-consistent, low-latency replication needed for SAP HANA's RPO and RTO requirements.
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
✓
Use AWS Database Migration Service (DMS) with ongoing replication from the primary HANA database to a target HANA database in us-west-2.
AWS DMS with ongoing replication can capture and apply changes from the primary SAP HANA database to a target HANA database in us-west-2 with low latency, supporting an RPO of 15 minutes. DMS uses log-based CDC (Change Data Capture) to replicate transactions continuously, making it suitable for near-real-time replication. This approach meets the RTO of 1 hour because the target database can be promoted quickly.
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 Database Migration Service (DMS) with ongoing replication from the primary HANA database to a target HANA database in us-west-2.
Why this is correct
DMS can replicate changes continuously, meeting RPO.
- ✗
Take EBS snapshots of HANA data volumes every 15 minutes and copy them to us-west-2.
Why it's wrong here
EBS snapshots cannot be taken every 15 minutes due to performance impact and limitations.
- ✗
Use Amazon S3 Cross-Region Replication to copy HANA backup files to us-west-2.
Why it's wrong here
Backup replication does not provide real-time replication; RPO would be hours.
- ✓
Configure SAP HANA System Replication (HSR) from the primary to a secondary HANA instance in us-west-2.
Why this is correct
HSR supports cross-region replication with low RPO.
- ✗
Use AWS Application Migration Service (MGN) to replicate the entire HANA server to us-west-2.
Why it's wrong here
MGN replicates the server, but RPO may not be as low as 15 minutes for a database workload.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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