Which of the following describes the roles of devices in a WAN?

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问题 Which of the following describes the roles of devices in a WAN?

选项 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．

答案A,D,E

解析

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Which of the following describes the roles of devices in a WAN?

思科640802

思科认证

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TodayweliveinaworldwhereGPSsystems,digitalmaps,andothernavigationappsareavailableonoursmartphones.【B1】______

Trustisatrickybusiness.Ontheonehand,it’sanecessarycondition【B1】______manyworthwhilethings;childcare,friendships

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