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
判断题 线路中断时,旅客可在中途站等候,并凭原票在通车前15日内恢复旅行()
问答题 WhatMSDPsolutionprovidestheabiltiytoplacethesameipRPaddressontheloopbackoftwoormorerouters?
判断题 线路中断,铁路组织绕道运输时,在绕道径路中,旅客可以要求退票。()