Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）
A. DAI
B. STP
C. PVLAN
D. port security
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Refer to the exhibit. The switchport output in Figure 1 displays the default settings of interface FastEthernet 0/13 on switch SW1. Figure 2 displays the desired interface settings.
Which command sequence would configure interface FastEthernet 0/13 as displayed in Figure 2？ （）
A. SW1（config-if）# switchport trunk encapsulation dot1q SW1（config-if）# switchport mode trunk SW1（config-if）# switchport trunk native DATA SW1（config-if）# switchport trunk allowed vlan 1，10，20
B. SW1（config-if）# switchport trunk encapsulation dot1q SW1（config-if）# switchport mode dynamic auto SW1（config-if）# switchport trunk native DATA SW1（config-if）# witchport trunk allowed vlan add 1，10，20
C. SW1（config-if）# switchport trunk encapsulation dot1q SW1（config-if）# switchport mode dynamic desirable SW1（config-if）# switchport trunk native vlan DATA SW1（config-if）# switchport trunk allowed vlan 1，10，20
D. SW1（config-if）# switchport trunk encapsulation dot1q SW1（config-if）# switchport mode dynamic desirable SW1（config-if）# switchport trunk native vlan 10 SW1（config-if）# switchport trunk allowed vlan 1，10，20
E. SW1（config-if）# switchport trunk encapsulation dot1q SW1（config-if）# switchport mode dynamic Desirable SW1（config-if）# switchport trunk native vlan 10
You need make configuration changes to an existing layer 3 switch in the Company network. On a multilayer Catalyst switch，
which interface command is used to convert a Layer 3 interface to a Layer 2 interface？（）
A. switchport access vlan vlan-id
B. switchport
C. switchport mode access
D. no switchport
E. None of the other alternatives apply
Refer to the exhibit. The user who is connected to interface FastEthernet 0/1 is on VLAN 10 and cannot access network resources. On the basis of the information in the exhibit，
which command sequence would correct the problem？（）
A. SW1（config）# vlan 10SW1（config-vlan）# no shut
B. SW1（config）# interface fastethernet 0/1SW1（config-if）# switchport mode accessSW1（config-if）# switchport access vlan 10
C. SW1（config）# interface fastethernet 0/1SW1（config-if）# switchport mode access
D. SW1（config）# vlan 10SW1（config-vlan）# state active
E. SW1（config）# interface fastethernet 0/1SW1（config-if）# no shut
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them.
What will be the result？（）
A. IEEE 802.1D and IEEE 802.1w are incompatible. All three switches must use the same standard or no traffic will pass between any of the switches.
B. Switches S1， S2， and S3 will be able to pass traffic between themselves.
C. Switches S1， S2， and S3 will be able to pass traffic between themselves. However， if there is a topology change， Switch S2 will not receive notification of the change.
D. Switches S1 and S3 will be able to exchange traffic but neither will be able to exchange traffic with Switch S2
The network administrator maps VLAN 10 through 20 to MST instance 2.
How will this information be propagated to all appropriate switches？（）
A. Information will be carried in the RSTP BPDUs.
B. It will be propagated in VTP updates.
C. Information stored in the Forwarding Information Base and the switch will reply on query.
D. Multiple Spanning Tree must be manually configured on the appropriate switches.
最新試題
Refer to the exhibit. Initially， LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements are true about the possible result of attaching the second link？（）
DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group. What can be done to make the group function properly ？ （）
If G1/0/1 on DS1 is shutdown， what will be the current priority value of the Vlan105’s group on DS1 ？（）
Refer to the exhibit. LACP has been configured on Switch1 as shown. Which is the correct command set to configure LACP on Switch2？（）
Which two statements about the various implementations of STP are true？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
What must be the same to make multiple switches part of the same Multiple Spanning Tree （MST）？（）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
Refer to the exhibit. On the basis of the output of the show spanning-tree inconsistentports command， which statement about interfaces FastEthernet 0/1 and FastEthernet 0/2 is true？（）