Which of the following replication methods provides a disaster recovery system with minimal down time to normal operations?

A cold site is an empty facility requiring significant time to set up equipment and restore data after a disaster, resulting in very high downtime.

A warm site has some infrastructure but requires additional time to configure systems and restore data, leading to moderate downtime compared to a hot site.

GFS (Grandfather-Father-Son) is a backup rotation strategy, not a disaster recovery site type that inherently minimizes operational downtime.

A hot site is a fully operational, continuously synchronized replica of a primary data center, designed to allow near-instantaneous failover during a disaster. Because data is replicated in real-time or near real-time and infrastructure is ready, it ensures business continuity with the lowest possible Recovery Time Objective (RTO).