Which of the following describes the roles of devices in a WAN? (Choose three.)
A.
A CSU/DSU terminates a digital local loop.
B.
A modem terminates a digital local loop.
C.
A CSU/DSU terminates an analog local loop.
D.
A modem terminates an analog local loop.
E.
A router is commonly considered a DTE device.
F.
A router is commonly considered a DCE device.