Lucca wants to fully validate his organization's hot site's ability to perform as needed in the event of an outage. What type of testing should he run to ensure that the hot site is completely tested as though an actual disaster has occurred?

Fail over testing goes beyond parallel processing and completely takes over running services. This is the most complex and risky testing mode, but also the only one that completely tests failure scenarios in a real-world exercise. Simulations and tabletops are more abstract and would not test the site, instead focusing on practices and behaviors.