单项选择题
A.The routers are not on the same network.
B.The network statements do not match.
C.The process number does not match.
D.The MTU does not match.
E.The OSPF cost does not match.
F.There is a physical issue with the cable.
多项选择题 InyourCiscoEIGRPnetwork，younoticethattheneighborrelationshipbetweentwoofyourrouterswasrecentlyrestarted.Whichtwoofthesechoicescouldhavemadethisoccur？（）
多项选择题 Router1isconfiguredforBGPasdual-homedontheCisconetwork.WhichthreeBGPattributesarecarriedineveryBGPupdateonthisrouter（bothIBGPandEBGP）？（）
问答题 简述相同的网段的互相访问问题。
