Which of the following is the most critical item from a disaster recovery point of view?

A.
Data

B.
Hardware/Software

C.
Communication Links

D.
Software Applications

Explanation:
Data loss has the most negative impact on business functions. Data loss often lead to business failure.
Incorrect Answers:
B: Software can be reinstalled and hardware can replaced, and are therefore less critical compared to loss of
data.
C: Communication links can quite easily put back again, compared to loss of data.
D: Loss of applications is Critical as they can be reinstalled.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 957