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. STP has been implemented in the network. Switch SW_A is the root switch for the default VLAN. To reduce the broadcast domain， the network administrator decides to split users on the network into VLAN 2 and VLAN 10. The administrator issues the command spanning-tree vlan 2 root primary on switch SW_A. What will happen as a result of this change？（）
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）
Which three statements about STP timers are true？（）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
Refer to the exhibit. Based on the output of the show spanning-tree command， which statement is true？ （）
What is the configured priority value of the Vlan105’s group on DS2 ？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Refer to the exhibit. The command switchport mode access is issued on interface FastEthernet0/13 on switch CAT1. What will be the result？（）
Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）
Refer to the exhibit. For what purpose is the command show ip cef used？（）