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单选题
Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0/0 on both switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails. Will Host A be able to reach Host B？（）
A
Yes. Traffic can pass either from switch S6 to S3 to S2 to S1， or， from switch S6 to S5 to S2 to S1.
B
No. Traffic will pass from switch S6 to S5 and dead-end at interface Gi 0/0.
C
No. Traffic will loop back and forth between switch S5 and S2.
D
Yes. Traffic will pass from switch S6 to S3 to S2 to S1.
E
No. Traffic will either pass from switch S6 to S5 and dead-end， or traffic will pass from switch S6 to S3 to S2 and dead-end.
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更多 “单选题Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0/0 on both switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails. Will Host A be able to reach Host B？（）A Yes. Traffic can pass either from switch S6 to S3 to S2 to S1， or， from switch S6 to S5 to S2 to S1.B No. Traffic will pass from switch S6 to S5 and dead-end at interface Gi 0/0.C No. Traffic will loop back and forth between switch S5 and S2.D Yes. Traffic will pass from switch S6 to S3 to S2 to S1.E No. Traffic will either pass from switch S6 to S5 and dead-end， or traffic will pass from switch S6 to S3 to S2 and dead-end.” 相关考题
考题
Refer to the exhibit. What must be done on router RTA to ensure that EIGRP works effectively in a Frame Relay multipoint environment?()
A. Issue the command bandwidth 224 on the physical interface.B. Issue the command bandwidth 56 on the physical interface.C. Issue the command bandwidth 224 on each subinterface.D. Issue the command bandwidth 56 on each subinterface.
考题
Refer to the exhibit. Which command would verify if PBR reacts to packets sourced from 172.16.0.0／16?()
A. show ip routeB. show policy - mapC. show access - listsD. show route - map
考题
Refer to the exhibit. Based on this command output, what can we conclude about R3?()
A. R3 is an ABR.B. R3 is not connec ted to the backbone.C. R3 has four neighbors.D. R3 is the DR for area 2.
考题
Refer to the exhibit. IP multicast configuration changes have been made on several routers.However, the IP multicast table displayed in the exhibit still does not reflect the changes. What should be done to display the new routing table information? （）A. Issue the clear ip route * privileged EXEC command.B. Issue the clear ip igmp group privileged EXEC command.C. Issue the no ip mroute - cache privileged EXEC command.D. Issue the clear ip mroute privileged EXEC command.
考题
Which command enables RSTP on a switch?()
A. spanning-tree mode rapid-pvstB. spanning-tree uplinkfastC. spanning-tree backbonefastD. spanning-tree mode mst
考题
Refer to the exhibit. What switch proves the spanning－tree designated port role for the network segment that services the printers?()
A.Switch1B.Switch2C.Switch3D.Switch4
考题
Refer to the exhibit. Which statement is true?()
A.The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20.B.VLAN 20 is running the Per VLAN Spanning Tree Protocol.C.The MAC address of the root bridge is 0017.596d.1580.D.SwitchA is not the root bridge, because not all of the interface roles are designated.
考题
Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?()
A.It has more than one interface that is connected to the root network segment.B.It is running RSTP while the elected root bridge is running 802.1d spanning tree.C.It has a higher MAC address than the elected root bridge.D.It has a higher bridge ID than the elected root bridge.
考题
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
考题
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
考题
The network administrator has enabled BPDU guard on the LAN. Why is an effective way to prevent an unauthorized rogue switch from altering the spanning-tree topology of this network？ （）A、BPDU guard can be used to prevent invalid BPDUs from propagating throughout the network. B、BPDU guard can guarantee proper selection of the root bridge.C、BPDU guard can be utilized to prevent the switch from transmitteing BPDUs and incorrectly altering the root bridge election.D、BPDU guard can be utilized along with PortFast to shut down ports when a switch is connected to the port.E、None of the other alternatives apply
考题
What is the result of entering the command spanning-tree loopguard default？（）A、The command enables both loop guard and root guard.B、The command changes the status of loop guard from the default of disabled to enabled.C、The command activates loop guard on point-to-multipoint links in the switched network.D、The command will disable EtherChannel guard.
考题
What Cisco technology protects against Spanning-Tree Protocol manipulation？（）A、 Spanning tree protectB、 Root Guard and BPDU GuardC、 Unicast Reverse Path ForwardingD、 MAC spoof guardE、 Port Security
考题
Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）A、The port must be put into forwarding state manually after root-inconsistent state has beencorrectedB、A Root Guard port receiving superior BPDU goes into a root-inconsistent stateC、A Root Guard port receiving inferior BPDU goes into a root-inconsistent stateD、While the port is in a root-inconsistent state no user data is sent across that portE、The port returns to a forwarding state if inferior BPDUs stopF、It should be applied to all switch ports
考题
Which command enables RSTP on a switch?（）A、spanning-tree mode rapid-pvstB、spanning-tree uplinkfastC、spanning-tree backbonefastD、spanning-tree mode mst
考题
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
考题
单选题Refer to the exhibit. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this RouterD?（）A
10.1.1.2B
10.154.154.1C
172.16.5.1D
192.168.5.3
考题
单选题What is the result of entering the command spanning-tree loopguard default？（）A
The command enables both loop guard and root guard.B
The command changes the status of loop guard from the default of disabled to enabled.C
The command activates loop guard on point-to-multipoint links in the switched network.D
The command will disable EtherChannel guard.
考题
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
考题
多选题Refer to the exhibit. Which two statements are correct？（）AAll six routes will be installed in the routing tableBTwo routes will be installed in the routing tableCFour routes will be installed in the routing tableDAll the routes were redistributed into BGP from an IGPEAll the routes were originated by BGP with the network command
考题
单选题Refer to the exhibit. What switch proves the spanning-tree designated port role for the network segment that services the printers?（）A
Switch1B
Switch2C
Switch3D
Switch4
考题
单选题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
考题
单选题Which configuration is used to enable root guard？（）A
interface gig3/1 spanning-tree guard rootB
interface gig3/1 spanning-tree root guardC
interface gig3/1 spanning-tree root-guardD
interface gig3/1 spanning-tree root-guard default
考题
单选题Which of the following commands can be issued without interfering with the operation of loop guard？（）A
Switch（config-if）#spanning-tree guard rootB
Switch（config-if）#spanning-tree portfastC
Switch（config-if）#switchport mode trunkD
Switch（config-if）#switchport mode access
考题
多选题Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）AThe port must be put into forwarding state manually after root-inconsistent state has beencorrectedBA Root Guard port receiving superior BPDU goes into a root-inconsistent stateCA Root Guard port receiving inferior BPDU goes into a root-inconsistent stateDWhile the port is in a root-inconsistent state no user data is sent across that portEThe port returns to a forwarding state if inferior BPDUs stopFIt should be applied to all switch ports
考题
单选题What Cisco technology protects against Spanning-Tree Protocol manipulation？（）A
Spanning tree protectB
Root Guard and BPDU GuardC
Unicast Reverse Path ForwardingD
MAC spoof guardE
Port Security
考题
单选题The network administrator has enabled BPDU guard on the LAN. Why is an effective way to prevent an unauthorized rogue switch from altering the spanning-tree topology of this network？ （）A
BPDU guard can be used to prevent invalid BPDUs from propagating throughout the network. B
BPDU guard can guarantee proper selection of the root bridge.C
BPDU guard can be utilized to prevent the switch from transmitteing BPDUs and incorrectly altering the root bridge election.D
BPDU guard can be utilized along with PortFast to shut down ports when a switch is connected to the port.E
None of the other alternatives apply
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