In a change control environment, which one of the following REDUCES the assurance of proper
changes to source programs in production status?
A.
Authorization of the change.
B.
Testing of the change.
C.
Programmer access.
D.
Documentation of the change.
Explanation:
I think I am going to disagree with the original answer (B testing of the change)
here. The question has REDUCES the assurance.
“Personnel separate from the programmers should conduct this testing.” -Ronald Krutz The CISSP
PREP Guide (gold edition) pg 345
Programmer’s access to his code in Production would be a violation of the assurance under the Common Criteria EAL’s and could cause that environment to lose their certification..