A.It burns up IP addresses.B.It conserves IPaddresses.C……

单项选择题A Bridged 1483 network is grouping DSL users into a single subnet.Where must the CPE work station’s default gateway point？（）

A.ERX ATM IP address
B.DSL router IP address
C.DSL bridge IP address
D.ERX loopback address

多项选择题A Bridged 1483 service offering is grouping DSL users into a large subnet.What are three characteristics of this configuration？（）

A.It burns IP addresses.
B.It conserves IP addresses.
C.A group of PVCs is a subnet.
D.It provides an umbered IP address to the ERX
E.It provides an IP unnumbered address to ERX

单项选择题How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）

A.It monitors messages from the external server and updates the routing table as needed.
B.It maintains the leases for the DHCP server and reassigns addresses to new subscribers.
C.It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.
D.It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.

单项选择题Which configuration command allows the ERX Edge Router to advertise customer networks into the provider’s IGP？（）

A.redistribute direct
B.redistribute static
C.redistribute connected
D.redistribute access-internal

多项选择题Which two B-RAS service offerings maintain the analog dial-up model with centralized user authentication，authorization，andaccounting？（）

A.Routed1483
B.Bridged1483
C.PPPoverATM
D.PPPoverEthernet