A.如果端口接收到 BPDU,所有交换机端口将为错误禁用状态
B.所有 TRUNK 端口可以立即连接到网络,而不是等待融合
C.如果端口接收到 BPDU,配置了 PortFast 的所有交换机端口将为错误禁用状态
D.接收 BPDU 的所有交换机端口会忽略 BPDU 消息
第1题
A.spanning-treeguardroot
B.spanning-treeportfastbpduguarddefault
C.spanning-treebpduguardenable
D.spanning-treebpdufilterenable
E.spanning-treeportfastbpdufilterdefault
第2题
A.Thecommandenablesbothloopguardandrootguard.
B.Thecommandchangesthestatusofloopguardfromthedefaultofdisabledtoenabled.
C.Thecommandactivatesloopguardonpoint-to-multipointlinksintheswitchednetwork.
D.ThecommandwilldisableEtherChannelguard.
第3题
A.Yes.TrafficcanpasseitherfromswitchS6toS3toS2toS1,or,fromswitchS6toS5toS2toS1.
B.No.TrafficwillpassfromswitchS6toS5anddead-endatinterfaceGi0/0.
C.No.TrafficwillloopbackandforthbetweenswitchS5andS2.
D.Yes.TrafficwillpassfromswitchS6toS3toS2toS1.
E.No.TrafficwilleitherpassfromswitchS6toS5anddead-end,ortrafficwillpassfromswitchS6toS3toS2anddead-end.
第4题
A.Yes.TrafficcanpasseitherfromswitchS6toS3toS2toS1,or,fromswitchS6toS5toS2toS1
B.No.TrafficwillpassfromswitchS6toS5anddead-endatinterfaceGi0/0
C.No.TrafficwillloopbackandforthbetweenswitchS5andS2
D.Yes.TrafficwillpassfromswitchS6toS3toS2toS1
E.No.TrafficwilleitherpassfromswitchS6toS5anddead-end,ortrafficwillpassfromswitchS6toS3toS2anddead-end
第5题
A.Yes.TrafficcanpasseitherfromswitchS6toS3toS2toS1,or,fromswitchS6toS5toS2toS1.
B.No.TrafficwillpassfromswitchS6toS5anddead-endatinterfaceGi0/0.
C.No.TrafficwillloopbackandforthbetweenswitchS5andS2.
D.Yes.TrafficwillpassfromswitchS6toS3toS2toS1.
E.No.TrafficwilleitherpassfromswitchS6toS5anddead-end,ortrafficwillpassfromswitchS6toS3toS2anddead-end.
第6题
A.Spanningtreeprotect
B.RootGuardandBPDUGuard
C.UnicastReversePathForwarding
D.MACspoofguard
E.PortSecurity
第7题
A.Switch(config)#spanning-treeloopguarddefault
B.Switch(config-if)#spanning-treebdpufilter
C.Switch(config)#udldaggressive
D.Switch(config-if)#spanning-treebpduguard
第8题
A.Uplink Fast
B.Port Fast
C.BPDUGuard
D.RootGuard
第9题
A. PortFast
B. UplinkFast
C. loop guard
D. root guard
E. BPDU guard
F. BackboneFast
第10题
A.PortFast
B.UplinkFast
C.loopguard
D.rootguard
E.BPDUguard
F.BackboneFast
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