PAS-C01 Technology Practice Question
A company runs an SAP HANA system on AWS. The system uses a three-node cluster with HANA System Replication (HSR) in a scale-out configuration. The cluster spans three Availability Zones. Which architecture ensures the highest availability for the SAP HANA database?
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 a cluster of nodes across three Availability Zones with HANA System Replication and automatic failover.
Deploying a three-node cluster across three Availability Zones with HANA System Replication and automatic failover maximizes availability by distributing the data across multiple AZs and ensuring automatic failover in case of an AZ failure. Option B is incorrect because HANA System Replication in active/active mode is not supported for scale-out configurations; typical HSR implementations use active/standby or multi-target replication. Option C is incorrect because Amazon RDS for SAP HANA does not exist; SAP HANA on AWS must be deployed on EC2 instances. Option D is incorrect because deploying all nodes in a single Availability Zone introduces a single point of failure, reducing availability compared to a multi-AZ deployment.
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 a cluster of nodes across three Availability Zones with HANA System Replication and automatic failover.
Why this is correct
B is correct: multi-AZ with HSR provides high availability.
- ✗
Configure HANA System Replication in active/active mode across all nodes.
Why it's wrong here
C is wrong: active/active is not supported for scale-out.
- ✗
Use Amazon RDS for SAP HANA with Multi-AZ deployment.
Why it's wrong here
D is wrong: Amazon RDS does not support SAP HANA.
- ✗
Deploy all nodes in a single Availability Zone with synchronous replication.
Why it's wrong here
A is wrong: single AZ failure affects all nodes.
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