During testing of network redundancy in a fully meshed enterprise campus， a problem has been reported. Both distribution multilayer switches are fully configured for redundancy； clients operate normally when the primary multilayer distribution switch is operating. All clients drop connections outside of their respective access layer group when the primary distribution switch is shut down and the secondary distribution switch is still operational. Additional information indicates that the secondary distribution switch is able to ping major corporate and Internet locations.
Which item would be the best point of troubleshooting for this connectivity issue？ （）
A.client network configuration
B.VLAN mapping
C.inter-switch trunk configuration
D.UDLD configuration
E.first-hop redundancy protocol
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A.aaa port-auth enable
B.radius port-control enable
C.dot1x system-auth-control
D.switchport aaa-control enable
A.The port is configured for both data and voice traffic.
B.The port is fully dedicated to forwarding voice traffic.
C.The port will operate as an FXS telephony port.
D.Voice traffic will be redirected to VLAN 222.
A remote host can be pinged from all switches except one.
Which of the following is the most likely reason for this failure？（）
A.VTP pruning has isolated the switch.
B.IP routing is disabled on the switch.
C.PoE is failing on the remote port.
D.There is a loop in the topology.
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.
A.Packets are distributed across the ports in the channel based on both the source and destination MAC addresses.
B.Packets are distributed across the ports in the channel based on both the source and destination IP addresses.
C.Packets are balanced across the ports in the channel based first on the source MAC address， then on the destination MAC address， then on the IP address.
D.Packets are distributed across the access ports in the channel based first on the source IP address and then the destination IP addresses.
最新試題
During routine maintenance， it became necessary to shutdown G1/0/1 on DS1 and DS2. All other interface were up. During this time， DS1 became the active device for Vlan104’s HSRP group. As related to Vlan104’s HSRP group. What can be done to make the group function properly ？ （）
What two things will occur when an edge port receives a BPDU？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this？（）
Which three statements about STP timers are true？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Which statement is correct about RSTP port roles？（）
Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statements about the STP process for VLAN 200 are true？ （）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is configured on all switches in the network. SW_B receives this error message on the console port：00：06：34： %CDP-4-DUPLEX_MISMATCH： duplex mismatch discovered on FastEthernet0/5 （not half duplex）， with SW_A FastEthernet0/4 （half duplex） ， with TBA05071417（Cat6K-B） 0/4 （half duplex）. What would be the possible outcome of the problem？（）