CompTIA Server+ (SK0-005)Security and Disaster RecoveryMedium
A company requires a disaster recovery solution that provides near-zero data loss and minimal downtime for its critical financial transaction system. The secondary site must be fully operational and mirror the primary site in real-time. Which type of DR site best meets these requirements?
- ARecovery-as-a-Service (RaaS)
- BHot Site
- CWarm Site
- DCold Site
Show answer & explanationAnswer & explanation
Correct answer: B. Hot Site
A hot site is a fully equipped, mirrored data center that can take over operations immediately with minimal data loss and downtime, which aligns with the requirements of near-zero data loss and real-time mirroring for critical systems.
Why the other options are wrong
- A. RaaS is a deployment model, not a site type, and its effectiveness depends on the underlying site configuration (which could be hot, warm, or cold).
- C. A warm site has some equipment but requires configuration and data restoration, resulting in moderate RTO/RPO.
- D. A cold site has no equipment and takes significant time to become operational, leading to high RTO/RPO.
Hot Site
A fully equipped, operational replica of a primary data center, ready to take over operations immediately in case of a disaster.
- Lowest RTO and RPO.
- Most expensive to maintain.
- Requires real-time data synchronization.
Memory trick: DR sites come in temperatures, hot is ready to go.