CompTIA Server+ (SK0-005)Security and Disaster RecoveryMedium
A system administrator is tasked with implementing a highly available solution for a critical database server. The requirement is to have a geographically separate site that can take over operations with minimal data loss (RPO close to zero) and very fast recovery time (RTO in minutes) in case of a disaster at the primary site. Which disaster recovery site type would best meet these stringent requirements?
- AWarm Site
- BBackup Site
- CHot Site
- DCold Site
Show answer & explanationAnswer & explanation
Correct answer: C. Hot Site
A hot site is a fully equipped, operational replica of the primary data center, with real-time data synchronization. This configuration allows for RPO close to zero and RTO in minutes, making it ideal for critical systems requiring minimal downtime and data loss.
Why the other options are wrong
- A. A warm site has equipment but requires data restoration and configuration, resulting in moderate RPO and RTO.
- B. Backup site is a generic term; it doesn't specify the level of readiness like hot, warm, or cold sites.
- D. A cold site has basic infrastructure but no equipment or data, leading to high RPO and RTO.
Hot Site
A fully equipped, operational, and geographically separate facility that replicates the primary data center, allowing for immediate switchover with minimal RTO and RPO in a disaster.
- Highest cost, lowest RTO/RPO.
- Fully operational with mirrored data.
- Allows for near-instant failover.
Memory trick: Hot is ready, Warm needs warming, Cold is just a shell.