ISC2 Systems Security Certified Practitioner (SSCP) Practice Question

A read-through (checklist) test is the least disruptive form of disaster-recovery testing. Each participant independently reviews the written recovery plan, annotates any outdated information, and confirms that the documented steps remain accurate. Because no discussion, system start-up, or parallel processing takes place, the exercise is inexpensive and poses no risk to production.

A tabletop (or structured walkthrough) test brings responders together to discuss their roles and simulated scenarios, incurring more time and coordination than a simple read-through. A parallel test requires building and starting alternate systems to verify that they can assume the workload, which adds cost and potential risk. A full-interruption test actually stops production to validate complete failover and is the most disruptive and expensive option. Therefore, the read-through checklist test is the only choice that satisfies the minimal-cost, zero-impact requirement.