单项选择题
Refer to the exhibit. Routers A and B are directly connected. Given the configuration, how many EIGRP routes will router B see in its routing table?（）
A.0 B.1 C.2 D.3 E.4
问答题 什么是毒性逆转的水平分割？
问答题 whatismeanofospfauto-costreference-bandwidth？
单项选择题 Youareconfiguringan802.1QtrunkbetweenaLayer2switchandafirewall.Youreadinthedocumentationthatthebestwaytosetupatrunkistosettheportasdynamicdesirable.Thetrunkisnotcomingup.Whichoneoftheseoptionswouldbeavalidexplanation？（）
