A site reliability engineer is designing a recovery strategy that requires quick failover to an identical site if the primary facility goes down. Which of the following types of sites should the engineer consider?

A recovery site is a general term that can refer to any location designated for disaster recovery purposes. However, it does not specify the readiness or immediacy of the site, making it less ideal for scenarios requiring quick failover compared to a hot site, which is specifically designed for immediate operational continuity.

A cold site lacks the necessary infrastructure and data, requiring significant time to set up and restore operations after a failure. This type of site is not equipped for quick failover, as it typically involves hardware that must be procured and configured, making it impractical for urgent recovery needs.

A warm site has some pre-installed hardware and partially configured systems, but it still requires time to restore full functionality. While it is quicker to activate than a cold site, it does not offer the immediate failover capability of a hot site, making it less suitable for scenarios requiring rapid recovery.