DBS-C01 Management and Operations Practice Question
A company is designing a disaster recovery strategy for an Amazon Aurora MySQL database with a recovery point objective (RPO) of 1 second and a recovery time objective (RTO) of 1 minute. Which TWO solutions meet these requirements? (Choose TWO.)
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
✓
Deploy an Aurora Global Database with a secondary region.
(Aurora Global Database) provides cross-region replication with an RPO of typically less than 1 second and RTO of approximately 1 minute, meeting the requirements. Option E (cross-Region read replicas) can be promoted to a standalone primary in under a minute, and replication lag is sub-second, achieving RPO of 1 second. Option A (Multi-AZ DB cluster) is confined to a single region and does not provide DR across regions. Option B (manual snapshots every hour) results in an RPO of up to 1 hour, far exceeding the 1-second requirement. Option C (automated backups) has a default backup interval of 5 minutes, resulting in an RPO of at least 5 minutes, and point-in-time recovery typically takes longer than 1 minute.
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 Multi-AZ DB cluster deployment.
Why it's wrong here
Multi-AZ is for HA within region, not DR.
- ✗
Take manual snapshots every hour and copy to another region.
Why it's wrong here
Snapshots are hourly, not meeting 1 second RPO.
- ✗
Enable automated backups and perform point-in-time recovery in another region.
Why it's wrong here
PITR RPO is up to 5 minutes.
- ✓
Deploy an Aurora Global Database with a secondary region.
Why this is correct
Global Database offers low RPO/RTO.
- ✓
Configure cross-Region read replicas and promote in disaster.
Why this is correct
Cross-Region replicas can be promoted with minimal data loss.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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