[单选题]在OSI七层模型中，介质工作在哪一层()

正确答案 ：C

物理层

[单选题]为了禁止网络210.93.105.0ftp到网络223.8.151.0，允许其他信息传输，则能实现该功能的选项是：()

正确答案 ：D

access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.00.0.0.255 eq ftp access list 100 permit ip any any

[多选题]What are two results of entering the VESwitch(config)# vtp mode client command on a Catalyst switch in the Ezonexam LAN? (Choose two.)

正确答案 ：BC

The switch will forward VTP summary advertisements

The switch will process VTP summary advertisements

解析：解析：Explanation:Servermode:VTPservershavefullcontroloverVLANcreationandmodificationfortheirdomains.AllVTPinformationisadvertisedtootherswitchesinthedomain,whileallreceivedVTPinformationissynchronizedwiththeotherswitches.Bydefault,aswitchisinVTPservermode.NotethateachVTPdomainmusthaveatleastoneserversothatVLANscanbecreated,modified,ordeleted,andVLANinformationcanbepropagated.Clientmode:VTPclientsdonotallowtheadministratortocreate,change,ordeleteanyVLANs.Instead,theylistentoVTPadvertisementsfromotherswitchesandmodifytheirVLANconfigurationsaccordingly.Ineffect,thisisapassivelisteningmode.ReceivedVTPinformationisforwardedouttrunklinkstoneighboringswitchesinthedomain,sotheswitchalsoactsasaVTPrelay.Transparentmode:VTPtransparentswitchesdonotparticipateinVTP.Whileintransparentmode,aswitchdoesnotadvertiseitsownVLANconfiguration,andaswitchdoesnotsynchronizeitsVLANdatabasewithreceivedadvertisements.InVTPversion1,atransparent-modeswitchdoesnotevenrelayVTPinformationitreceivestootherswitches,unlessitsVTPdomainnamesandVTPversionnumbersmatchthoseoftheotherswitches.InVTPversion2,transparentswitchesdoforwardreceivedVTPadvertisementsoutoftheirtrunkports,actingasVTPrelays.ThisoccursregardlessoftheVTPdomainnamesetting.

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