6.2. Implement disaster recovery procedures.
Disaster recovery planning and procedures enable an organization to maintain or recover its mission-critical processes in spite of events that threaten its infrastructure. Maintaining business continuity means maintaining the organization's networking and IT infrastructure so that mission-critical functions continue to operate. This must be done in spite of reduced resources and damaged equipment. As long as business operations aren't stopped, business continuity is used to sustain the organization. If business operations are stopped, disaster recovery takes over.
For more information on this topic, see Chapter 6 of the CompTIA Security+ Study Guide, 4th Edition (Sybex, November 2008).