Which trusted facility management concept implies that two operators must review and approve the
work of each other?

A.
Two-man control

B.
Dual control

C.
Double control

D.
Segregation control

Explanation:
The proper term for this trusted facility management concept is “Two-man Control”, it means that
two people must work and approve each others work to provide increased security and eliminate
the possibility of one of them to hurt the company. For example they can only make changes to the
system if both of them authenticate with their retina at the same time at the data center and enter
their secret password This kind of work fashion is only used in highly secure environments, its not
very common.