Which of the following must be included in the disaster recovery plan? select one: a. business functions b. critical support functions c. corporate-level support functions d. all of the above

D. All of the above.

Explanation:

Disaster recovery plan (DRP) is a documented procedure required to re-instate the business IT infrastructure of a company after a disaster occurs. The disaster could be natural, environmental or man-made. There are three ways DRP can be implemented, namely preventive, detective and restorative recovery plan.

There are functions needed in the disaster recovery plan that must be implemented and they vary with organisational type. Business, critical support and corporate function must be implemented to support an infrastructure affected by disaster.