Which of the following is the proper time for a firmware upgrade?

A.
Installing a compatible Hard drive

B.
Installing a compatible RAID controller

C.
Installing a compatible processor

D.
When problems occur if not updated

Explanation:
The firmware should only be upgraded when issues affecting network security are raised or suffer from the same problem the system is continually experiences then an update might indeed become a necessary solution.

Incorrect Answers:
A: This would be detected and would have been put in use already and does not require a BIOS upgrade.
B: This would be detected and would have been put in use already and does not require a BIOS upgrade.
C: This would be detected and would have been put in use already and does not require a BIOS upgrade.
Reference:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 398.