Which of the following characteristics is generally found on a docking station that port replicators
do not offer?

A.
Replicators usually have more USB ports than docks.

B.
Docks generally do not need separate power to function.

C.
Docks have independent hardware that replicators lack.

D.
Replicators have additional NIC that docks lack.

Explanation:

http://www.computerhope.com/jargon/d/dockstat.htm