- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
多項(xiàng)選擇題
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 considered a DTE device.
F. A router is commonly considered a DCE device.
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