Which of the following disaster recovery tests includes the operations that shut down at the primary site, and are shifted to the recovery site according to the disaster recovery plan?

Question

Options

• AStructured walk-through test
• BSimulation test
• CFull-interruption test
• DParallel test

• A
  3% (1)
• B
  10% (3)
• C
  83% (25)
• D
  3% (1)

Explanation

A Full-interruption test (C) is the most rigorous DR test because it actually shuts down primary site operations and forces a real failover to the recovery site - exactly as described in the question. This is the only test type that involves genuine disruption of production systems.

Why the distractors are wrong:

• A. Structured walk-through - Team members review the DR plan on paper, discussing their roles; nothing is actually executed or shut down.
• B. Simulation test - A mock disaster scenario is enacted, but primary operations continue running; it's a rehearsal, not a real cutover.
• D. Parallel test - The recovery site is brought online alongside the primary site (both run simultaneously), so there is no shutdown of the primary.

Memory tip: Think of the names literally. "Full-interruption" = full interruption of the primary site. "Parallel" = both sites run in parallel. "Simulation" = simulated, not real. "Walk-through" = just walking through the plan on paper. The more disruptive the name sounds, the more disruptive the test actually is - full-interruption sits at the extreme end of that scale.

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