PAS-C01 Technology Practice Question
A company is running SAP HANA on an EC2 instance. The administrator needs to ensure that the instance is resilient to an Availability Zone failure. Which actions should the administrator take? (Choose TWO.)
⚠ Common exam trap
Watch out — candidates often confuse instance-level recovery (e.g., CloudWatch recovery or Auto Scaling) with database-level replication, failing to recognize that SAP HANA requires a dedicated replication mechanism like HSR to maintain data consistency across AZs.
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
✓
Set up SAP HANA System Replication between instances in two Availability Zones.
SAP HANA System Replication (HSR) provides synchronous or asynchronous replication of the HANA database to a secondary instance in a different Availability Zone (AZ). This ensures that if the primary AZ fails, the secondary instance can be promoted to primary with minimal data loss, meeting the resilience requirement. HSR is the native SAP mechanism for disaster recovery across AZs and is fully supported on AWS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure Auto Scaling to automatically launch a new instance in another AZ.
Why it's wrong here
Auto Scaling is for scaling, not for HANA HA.
- ✗
Use Amazon CloudWatch to monitor instance health and trigger a recovery.
Why it's wrong here
CloudWatch cannot recover HANA; a separate instance is needed.
- ✓
Set up SAP HANA System Replication between instances in two Availability Zones.
Why this is correct
HSR provides data replication across AZs.
- ✓
Deploy a second HANA instance in a different AZ and configure replication.
Why this is correct
This ensures HA across AZs.
- ✗
Take daily EBS snapshots of the HANA data volume.
Why it's wrong here
Snapshots are for backup, not for HA.
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