单项选择题

WNG系统目前配置使用的终端厂家为( )

A.oppo
B.vivo
C.天机
D.三星

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Whichofthefollowingstatementsaretrueconcerningthecommandipslamonitorrespondertypetcpconnectipaddress10.1.1.1port23？（Chooseallthatapply.）（）

A.ThecommandwillinitiateaprobewithadestinationIPaddressof10.1.1.1
B.ThecommandisusedontheIPSLAresponderandtheIPSLAsource
C.Thecommandwillallowonlysourceaddress10.1.1.1tosourceprobes
D.ThecommandwillinitiateaprobewithadestinationTelnetport
E.Thecommandisusedtomaketherouteraresponder
F.Thecommandwillinitiateaprobewithasourceportof23

WhichofthefollowingstatementsaretrueforroutersbutnottrueforLayer3Ethernetswitches？（Chooseallthatapply.）（）

A.MayhaveEthernetaswellasnon-Ethernetinterfaces
B.Traditionallyusedasastandalonedeviceforinter-VLANcommunication
C.MakesuseofTCAMs
D.Usessubinterfacestodefinetrunks
E.CanusebothLayer2andLayer3tomakeforwardingdecisions
F.AllowsthedefinitionofSwitchedVirtualInterfaces（SVI）