单项选择题
Which CLI command displays the PPPoE customers that are currently connected to the ERX?（）
A. show users
B. show connected
C. show subscribers
D. show ip subscribers
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相关考题
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单项选择题
Which configuration command limits the number of connections supported on a single PPPoE major interface?（）
A.sessions
B.sa-validate
C.split-horizon
D.duplicate-protection -
单项选择题
Which configuration command prevents a client from establishing multiple PPPoE connections from a single workstation?（）
A. sessions
B. sa-validate
C. split-horizon
D. duplicate-protection -
单项选择题
A metro Ethernet user is connected using a PPP over Ethernet service.How many Layer 2 headers are attached to each IP datagram?（）
A.1
B.2
C.3
D.4
