Which DR testing type involves an actual switch to the DR site to verify operation?

Which DR testing type involves an actual switch to the DR site to verify operation?

• A. Tabletop exercises
• B. Failover tests
• C. Parallel tests
• D. Recovery drills

Answer: (B)

The key idea being tested is whether an organization can actually switch operations over to the disaster recovery site and keep them running to verify everything works in DR mode. The type that does this is failover testing: it intentionally moves production traffic and workloads to the DR environment, validates that systems, networks, and processes operate there, and often includes a failback to the original site after verification. That real cutover is what distinguishes it from others. Tabletop exercises simulate responses in a discussion setting without touching live systems, so no real switch occurs. Parallel tests run DR components alongside the primary site to confirm readiness, but production remains on the primary and a full switch isn’t performed. Recovery drills focus on the steps to restore services, often testing data restoration and configuration changes, rather than executing a live switchover to the DR site.

The key idea being tested is whether an organization can actually switch operations over to the disaster recovery site and keep them running to verify everything works in DR mode. The type that does this is failover testing: it intentionally moves production traffic and workloads to the DR environment, validates that systems, networks, and processes operate there, and often includes a failback to the original site after verification. That real cutover is what distinguishes it from others.

Tabletop exercises simulate responses in a discussion setting without touching live systems, so no real switch occurs. Parallel tests run DR components alongside the primary site to confirm readiness, but production remains on the primary and a full switch isn’t performed. Recovery drills focus on the steps to restore services, often testing data restoration and configuration changes, rather than executing a live switchover to the DR site.