单项选择题
A.zero B.at least one C.at least two D.at least four E.at least three
WhichtwostatementsaboutOSPFIPv6routingaretrue？（）A.It re...
多项选择题Which two statements about OSPF IPv6 routing are true？（）
A.It requires OSPF version 3. B.automatically detects neighbors over NHMA interfaces C.It supports encryption using D.It uses LSA type 9 E.It uses LSA type 8
