单项选择题
A.All IP packets passing through the router
B.Only IP packets with the source address of 10.1.1.1
C.All IP packets from 10.1.1.1 to 172.16.1.1
D.All IP Packets between 10.1.1.1 and 172.16.1.1
问答题 whatwillhappenifuconfiguretworouterasNTPserver(somethinglikethat).
问答题 The interface is up and protocol is up. When do u get these messages.
问答题 TwoCiscoroutersareconnectedtoeachotherandareenabledCDP.Seriallineisup,protocolisalsoupbutcdpneighbornotworking.WhatlayeroftheOSImodeldoestheproblemmostlikelyexist?