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

单项选择题 In a Routed 1483 network which method of routing is typically employed on the DSL router？（）

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?（）