A security concern that is prevalent in distributed environments and systems is _______________.

A.
Knowing the proper proxy and default gateway

B.
Knowing whom to trust

C.
Knowing what authentication method is most appropriate

D.
Knowing how to resolve hostnames

Explanation:
B: Distributed environments bring about a lot more complexity and drastically increase the difficulty of access control. Since you now have many different applications, devices, services, and users, it is much more difficult to know which entities to trust and to what degree.