多项选择题
A.Provide dynamic IPaddressesforDSIs.
B.Provide connectivity to DHCP servers on other subnetworks.
C.Provide dynamic IP addresses for SRC applications.
D.Provide dynamic IP addresses from pools used for PPPoE subscribers.
单项选择题 In a bridged 1483 network,which configuration command allows the ERX Edge Router to advertise customer networks into the provider's IGP?（）
多项选择题 Which two B-RAS service offerings do not require user authentication?（）
单项选择题 Which protocol is used between the RAS and the authentication server in a narrowband network environment？（）