单项选择题
A.Server: 10.0.0.1:69 RRQ/WRQ Sent;Client: 10.0.0.2:1888 RRQ/WRQ Received
B.Server: 10.0.0.1:1888 RRQ/WRQ Received;Client: 10.0.0.2:69 RRQ/WRQ Received
C.Server: 10.0.0.1:69 RRQ/WRQ Received;Client: 10.0.0.2:69 RRQ/WRQ Sent
D.Server: 10.0.0.1:69 RRQ/WRQ Received;Client: 10.0.0.2:1888 RRQ/WRQ Sent
E.Server: 10.0.0.1:1888 RRQ/WRQ Sent;Client: 10.0.0.2:69 RRQ/WRQ Sent
F.Server: 10.0.0.1:1888 RRQ/WRQ Received;Client: 10.0.0.2:69 RRQ/WRQ Sent
问答题 网络安全涉及到TCP/IP哪几层?
单项选择题 Youaredeployingtwocoreswitches,oneineachbuilding,50kmawayfromeachother.Thecross-connectionbetweenthemwillbeaLayer22-gigabitEtherChannelwithan802.1Qtrunk.Youconfigureditcorrectlybutthelinkdoesnotcomeup.Theportisinthe"adminup"state,andthelineprotocolisinthe"down"state.ThefiberlinkisOK.Whatwouldbethemostlikelyreasonforthelinknottocomeup?()
单项选择题 CustomerXhasahub-and-spokeFrameRelaynetwork,withacentralofficeandtwobranchoffices(RemoteAandRemoteB).EachlocationhasonlyonephysicallinktotheFrameRelaycloudandRemoteBhasarouterthatisnotaCiscorouter.Sincetheinstallation,thereisnoconnectivitybetweenRemoteBandthecentraloffice.Whatisapossiblesolutiontothisissue?()