PAS-C01 Design of SAP Workloads on AWS Practice Question
A company runs SAP ERP on AWS with an Oracle database. The architect wants to implement a backup strategy that provides point-in-time recovery (PITR) with an RPO of 5 minutes and an RTO of 2 hours. Which TWO solutions should the architect consider? (Choose TWO.)
⚠ Common exam trap
Candidates often assume EBS snapshots can be taken at very high frequencies (like every 5 minutes) to achieve low RPO, but AWS enforces a 60-minute minimum cooldown between snapshots, making this option infeasible for the stated RPO.
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
✓
AWS Database Migration Service (DMS) with ongoing replication to an Oracle instance in another AZ
AWS DMS with ongoing replication can continuously replicate changes from the Oracle source database to a target Oracle instance in another Availability Zone, enabling point-in-time recovery with an RPO as low as 5 minutes. This approach supports near-real-time replication and can be combined with automatic failover to meet the RTO of 2 hours, as the target instance is already synchronized and ready.
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 Database Migration Service (DMS) with ongoing replication to an Oracle instance in another AZ
Why this is correct
DMS ongoing replication can achieve low RPO and provides a standby for failover.
- ✓
Oracle Recovery Manager (RMAN) with archivelog mode backing up to Amazon S3
Why this is correct
RMAN with archivelogs can provide PITR with low RPO.
- ✗
Amazon S3 Lifecycle policies to move backups to Glacier
Why it's wrong here
Lifecycle policies manage storage tiers, not backup functionality.
- ✗
Amazon S3 Transfer Acceleration for backup uploads
Why it's wrong here
Transfer Acceleration speeds up uploads but does not provide PITR.
- ✗
EBS snapshots every 5 minutes
Why it's wrong here
EBS snapshots are not designed for such frequent intervals and may impact performance.
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