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
多项选择题 Which statements are true about EIGRP successor routes? （）
单项选择题 What is one reason that WPA encryption is preferred over WEP（）。
单项选择题 Which item represents the standard IP ACL?（）
