Which of the following methods determines whether the field contains the NULL value?

What is an international standard that enables high-speed data transfers over a cable system?

A) VDSL B) DOCSIS C) DSLAM D) SONET

Which of the following charateristics is generally found on 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