Section: Volume C
Explanation:
Exposure Factor represents the impact of the risk over the asset, or percentage of asset lost. For example, if the Asset Value is reduced to two third, the exposure factor value is 0.66.
Therefore, when the asset is completely lost, the Exposure Factor is 1.0.
Incorrect Answers:
B, C, D: These are not the values of exposure factor for zero assets.

Explanation/Reference:
Explanation:
The Business Continuity Strategy is an outline of the approach to ensure the continuity of Vital Business Functions in the case of disaster events. The Business Continuity Strategy is prepared by the business and serves as a starting point for producing the IT Service Continuity Strategy.
Incorrect Answers:
B: Index of Disaster-Relevant Information is a catalog of all information that is relevant in the event of disasters. This document is maintained and circulated by IT Service Continuity Management to all members of IT staff with responsibilities for fighting disasters.
C: Disaster Invocation Guideline is a document produced by IT Service Continuity Management with detailed instructions on when and how to invoke the procedure for fighting a disaster. Most importantly, the guideline defines the first step to be taken by the Service Desk after learning that a disaster has occurred.
D: Availability/ ITSCM/ Security Testing Schedule is a schedule for the regular testing of all availability, continuity, and security mechanisms jointly maintained by Availability, IT Service Continuity, and IT Security Management.