Which of the following disaster recovery tests is the most intrusive to business operations?

A.
Parallel

B.
Simulation

C.
Full-interruption

D.
Checklist

Explanation:
Full-interruption tests require the original site to be completely
shut down and all processes moved to an alternate site. This can be very disruptive
to a company, but is the only way to really know the disaster recovery plan will
work when it is needed.