CompTIA Cloud Essentials+ (CLO-002)Management and Technical OperationsMedium
A cloud architect is designing a disaster recovery solution for a critical application that must have minimal downtime and minimal data loss. The current Recovery Point Objective (RPO) is 1 hour, and the Recovery Time Objective (RTO) is 4 hours. However, the business now mandates an RPO of 15 minutes and an RTO of 30 minutes. Which of the following strategies, when combined, would best achieve these new, more stringent requirements?
- AHourly database snapshots and warm standby in a different region.
- BContinuous data replication and active-active deployment across multiple regions.
- CDaily backups to tape storage and manual restoration.
- DWeekly full backups to object storage and cold standby in the same region.
Show answer & explanationAnswer & explanation
Correct answer: B. Continuous data replication and active-active deployment across multiple regions.
Continuous data replication minimizes RPO to near zero by constantly syncing data, and an active-active deployment provides immediate failover with minimal RTO by having both sites fully operational and serving traffic simultaneously.
Why the other options are wrong
- A. Hourly snapshots meet the 15-minute RPO, but warm standby might not meet the 30-minute RTO for full recovery.
- C. Daily backups and manual restoration would result in RPO/RTO far exceeding the new requirements.
- D. Weekly backups and cold standby would lead to very high RPO and RTO, failing to meet the requirements.
Active-Active Disaster Recovery
A disaster recovery strategy where two or more sites are simultaneously active, processing requests and serving traffic, providing near-zero RTO and RPO.
- Both sites are fully operational.
- Traffic is distributed between sites.
- Offers highest availability and lowest RTO/RPO.
Memory trick: Faster recovery means more active, more replication.