单项选择题

A user is connected on a DSL line and is using a PPP over Ethernet service. Which network device encapsulates the datagram inside of an ATM header?（）

A.DSLAM
B.DSL modem
C.ERX Edge Router
D.customer workstation

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多项选择题

A.1645
B.1646
C.1812
D.1813

单项选择题

A.policy list
B.RADIUS VSA
C.classifier ACL
D.LCP negotiation

单项选择题

A.DHCP assigned addresses
B.RADIUS assigned addresses
C.IP numbered with a loopback reference
D.IP unnumbered with a loopback reference