试题详情
- 多项选择题Which of the following describes the roles of devices in a WAN?（）
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 consideredaDTEdevice
F、A router is commonly considereda DCE device
- A,D,E
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