PAS-C01 Technology Practice Question
A company has deployed SAP S/4HANA on AWS using a single EC2 instance for the HANA database. The database volume is an EBS io1 volume with 5,000 provisioned IOPS. The company wants to implement a high availability (HA) solution for the database using SAP HANA System Replication (HSR) with automatic failover. They plan to use a second EC2 instance in a different Availability Zone. The database administrator is concerned about data consistency during replication. Which additional AWS service should be used to ensure data consistency and minimize data loss during failover?
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
✓
Amazon Route53 with health checks to automatically redirect traffic to the standby instance.
Amazon Route53 with health checks can monitor the primary HANA instance and automatically update DNS to redirect traffic to the standby instance in a different Availability Zone during a failover. This ensures minimal disruption and data consistency with HSR. Option A (AWS Backup) is for scheduled backups, not real-time replication. Option B (DMS) is designed for database migration, not for HANA HSR. Option C (EBS snapshots) provide point-in-time backups, not continuous replication to minimize data loss.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Backup to schedule backups of the HANA database.
Why it's wrong here
Backup is not replication.
- ✗
AWS Database Migration Service (DMS) to continuously replicate data.
Why it's wrong here
DMS is for heterogeneous migrations, not HSR.
- ✗
Amazon EBS snapshots to capture point-in-time copies of the data volume.
Why it's wrong here
Snapshots are not real-time replication.
- ✓
Amazon Route53 with health checks to automatically redirect traffic to the standby instance.
Why this is correct
Route53 can provide DNS failover with health checks.
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