Which of the following describes the roles of devices in a WAN (Choose three.)()。

Question

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.

Answer 1

参考答案：A, D, E