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全部科目 > 软件认证工程师考试 > 思科认证考试 > CCNA系列认证 > CCNA系列认证综合练习

多项选择题

The network administrator must complete the connection between the RTA of the XYZ Company and the service provider. To accomplish this task, which two devices could be installed at the customer site to provide a connection through the local loop to the central office of the provider (Choose two.)()。

A.WAN switch
B.PVC
C.ATM switch
D.multiplexer
E.CSU/DSU
F.modem

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