41. 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?
Answer: B
Hot site
A hot site is a fully operational backup facility that can take over immediately if the primary site fails. This type of site is equipped with all the necessary hardware and software, ensuring minimal downtime and quick recovery.
A) Recovery site
While the term "recovery site" broadly refers to any location designated for disaster recovery, it lacks specificity regarding the level of readiness. It can encompass hot, warm, and cold sites, but does not guarantee the immediate operational capacity required for quick failover.
B) Hot site
A hot site is the ideal choice for quick failover as it is continuously updated and operational, allowing for immediate switchovers in case of primary site failure. This ensures that business operations can resume with minimal interruption, aligning perfectly with the engineer's need for rapid recovery.
C) Cold site
A cold site is essentially a backup facility that lacks the immediate infrastructure to be operational. It may contain basic resources but requires significant time and effort to become functional, making it unsuitable for scenarios needing quick failover.
D) Warm site
A warm site is partially equipped and can be operational within a few hours to days. However, it does not provide the instantaneous recovery that a hot site does, thus falling short of the requirement for quick failover in the event of a primary facility failure.
Conclusion
The hot site is definitively the best option for a recovery strategy that requires quick failover, as it offers immediate operational capability. Other options, such as cold and warm sites, do not meet the critical need for minimal downtime, while the generic term "recovery site" lacks the specificity required for this scenario.