Which spanning-tree command would cause a PortFast-enabled interface to lose its PortFast-operational status and disable BPDU filtering if it receives BPDUs？（）A、spanning-tree guard rootB、spanning-tree portfast bpduguard defaultC、spanning-tree bpduguard enableD、spanning-tree bpdufilter enableE、spanning-tree portfast bpdufilter default
Which spanning-tree command would cause a PortFast-enabled interface to lose its PortFast-operational status and disable BPDU filtering if it receives BPDUs？（）
- A、spanning-tree guard root
- B、spanning-tree portfast bpduguard default
- C、spanning-tree bpduguard enable
- D、spanning-tree bpdufilter enable
- E、spanning-tree portfast bpdufilter default
相关考题：
By default, which of the following factors determines the spanning-tree path cost?A．It is the individual link cost based on latencyB．It is the sum of the costs based on bandwidthC．It is the total hop countD．It is dynamically determined based on loadE．None of the above
Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per－VLAN Spanning－Tree plus?() A. PortFastB. UplinkFastC. loop guardD. root guardE. BPDU guardF. BackboneFast
Which command enhances the 802.1D convergence time on ports that are connected to hosts?() A. spanning-tree backbonefastB. spanning-tree uplinkfastC. spanning-tree portfastD. spanning-tree cost512
Which term describes a spanning－tree network that has all switch ports in either the blocking or forwarding state?() A. redundantB. spannedC. provisionedD. converged
Which command enables RSTP on a switch?() A. spanning-tree mode rapid-pvstB. spanning-tree uplinkfastC. spanning-tree backbonefastD. spanning-tree mode mst
当你想关闭一台直接连在服务器上的交换机上的STP功能时，你不会使用下面哪些命令（）A、Disablespanning-treeB、spanning-tree offC、spanning-tree securityD、spanning-tree portfastE、spanning-tree down
能够将分布交换机配置为生成树的主根交换机的命令是（）。A、spanning-tree vlan vlan-id primaryB、spanning-tree vlan vlan-id root primaryC、spanning-tree root primaryD、spanning-tree bridge root
哪个命令可以在交换机启用RSTP？ （）A、 spanning-tree mode rapid-pvstB、 spanning-tree uplinkfastC、 spanning-tree backbonefastD、 spanning-tree mode mst
In Layer 2 topologies， spanning-tree failures can cause loops in the network. These unblocked loops can cause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limit excessive traffic during spanning-tree loop conditions？ （）A、loop guardB、storm controlC、storm suppressionD、broadcast suppressionE、BPDU guard
Which term describes a spanning-tree network that has all switch ports in either the blocking or forwardingstate？ （）A、redundantB、spannedC、provisionedD、converged
By default, which of the following factors determines the spanning-tree path cost?（）A、It is the individual link cost based on latencyB、It is the sum of the costs based on bandwidthC、It is the total hop countD、It is dynamically determined based on load
Which three options are considered in the spanning-tree decision process？（）A、lowest root bridge IDB、lowest path cost to root bridgeC、lowest sender bridge IDD、highest port IDE、highest root bridge IDF、highest path cost to root bridge
Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?（）A、redundantB、spannedC、provisionedD、converged
Which command enables RSTP on a switch?（）A、spanning-tree mode rapid-pvstB、spanning-tree uplinkfastC、spanning-tree backbonefastD、spanning-tree mode mst
Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?（）A、PortFastB、UplinkFastC、loop guardD、root guardE、BPDU guardF、BackboneFast
In Layer 2 topologies， spanning-tree failures can cause loops in the network. These unblocked loops cancause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limitexcessive traffic during spanning-tree loop conditions？（）A、loop guardB、storm controlC、storm suppressionD、broadcast suppressionE、BPDU guard
Which command enhances the 802.1D convergence time on ports that are connected to hosts?（）A、spanning-tree backbonefastB、spanning-tree uplinkfastC、spanning-tree portfastD、spanning-tree cost512
In which Spanning-Tree states does a switch port learn MAC addresses?（）A、BlockingB、ListeningC、ForwardingD、LearningE、Relaying
单选题By default, which of the following factors determines the spanning-tree path cost?（）AIt is the individual link cost based on latencyBIt is the sum of the costs based on bandwidthCIt is the total hop countDIt is dynamically determined based on load
多选题Which three options are considered in the spanning-tree decision process？（）Alowest root bridge IDBlowest path cost to root bridgeClowest sender bridge IDDhighest port IDEhighest root bridge IDFhighest path cost to root bridge
单选题哪个命令可以在交换机启用RSTP？ （）A spanning-tree mode rapid-pvstB spanning-tree uplinkfastC spanning-tree backbonefastD spanning-tree mode mst
单选题A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state， which command should be configured to satisfy the requirement？（）ASwitch（config）#spanning-tree loopguard defaultBSwitch（config-if）#spanning-tree bdpufilterCSwitch（config）#udld aggressiveDSwitch（config-if）#spanning-tree bpduguard
单选题Which configuration is used to enable root guard？（）Ainterface gig3/1 spanning-tree guard rootBinterface gig3/1 spanning-tree root guardCinterface gig3/1 spanning-tree root-guardDinterface gig3/1 spanning-tree root-guard default
单选题Which of the following commands can be issued without interfering with the operation of loop guard？（）ASwitch（config-if）#spanning-tree guard rootBSwitch（config-if）#spanning-tree portfastCSwitch（config-if）#switchport mode trunkDSwitch（config-if）#switchport mode access
单选题What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）Apath costBlowest port MAC addressCVTP revision numberDhighest port priority numberEport priority number and MAC address
多选题In which Spanning-Tree states does a switch port learn MAC addresses?（）ABlockingBListeningCForwardingDLearningERelaying
多选题In Layer 2 topologies， spanning-tree failures can cause loops in the network. These unblocked loops cancause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limitexcessive traffic during spanning-tree loop conditions？（）Aloop guardBstorm controlCstorm suppressionDbroadcast suppressionEBPDU guard