(Choose 1 answer)
All of the following about wireless wide area networks (WWAN) are true EXCEPT:
A. The single WWAN network standard insures compatibility of handsets within and between countries.
B. Most WWANs are cellular phone networks.
C. At the center of each cell is a base station transceiver or cell tower that is used to send and receive signals to and from mobile devices operating within the cell.
D. When a device is turned on, a SIM card inside the device identifies itself to the WWAN.
R
Q: 18
