An administrator is considering setting up a hot site for disaster recovery of the company's infrastructure. While reading through the online documentation, the administrator tries to identify key…

Mirroring means data is replicated in real time to the hot site so it always holds an exact current copy of production data, enabling immediate failover with no restoration step required.

Synchronous replication confirms each write at both the primary site and the hot site before acknowledging completion, ensuring zero data loss and a recovery point objective near zero - a defining characteristic that separates a hot site from all other DR tiers.

Recovery describes the process of restoring systems from backups, which is associated with cold sites that require significant setup and restoration time before becoming operational.

Asynchronous replication introduces a lag between primary and secondary data writes, which is characteristic of warm sites that tolerate some data loss, not hot sites.

Migration refers to moving systems or data between environments and is not a defining term for any disaster recovery site tier.

Backup describes periodic data copies used in cold sites where data must be restored manually before operations can resume, not the real-time approach of a hot site.