A company is interested in a DRP. The purpose of the plan is to recover business as soon as possible. The MOST effective technique is:

Archiving preserves historical data copies for compliance and point-in-time restoration but provides no live failover capability, resulting in significant downtime during a disaster.

Network clustering improves redundancy within a single site but does not address site-level geographic failures that a full DRP must cover.

Site mirroring replicates data to a secondary site but the secondary typically remains in a passive or warm standby state, requiring manual or automated failover steps that introduce higher RTO than active/active.

In an active/active configuration, all nodes across multiple sites are concurrently processing traffic, so if one site fails, remaining sites absorb the load instantly with near-zero Recovery Time Objective (RTO). This is the highest tier of resiliency and the fastest path to business continuity compared to any standby-based approach.