The Company security administrator is concerned with VLAN hopping based attacks.
Which two statements about these attacks are true？ （）
A. Attacks are prevented by utilizing the port-security feature.
B. An end station attempts to gain access to all VLANs by transmitting Ethernet frames in the 802.1q encapsulation.
C. Configuring an interface with the switchport mode dynamic command will prevent VLAN hopping.
D. An end station attempts to redirect VLAN traffic by transmitting Ethernet frames in the 802.1q encapsulation.
E. Configuring an interface with the "switchport mode access" command will prevent VLAN hopping.
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Refer to the exhibit. PCs in VLAN 2 are not able to communicate with PCs in VLAN 3.
What could be the cause？（）
A. IP routing is not enabled.
B. VTP is not configured correctly on the interfaces.
C. The command mls rp management-interface is missing.
D. The command mls rp ip must be disabled to enable the routing.
You are configuring a Cisco multilayer switch for the Company network.
Which command would you use to configure a port to act as a routed interface？（）
A. ip routing
B. switchport mode trunk
C. no switchport
D. switchport trunk native vlan 1
E. None of the other alternatives apply
Which of the following could be used to provide a Layer 3 data path between separate VLANs？（）
A. VLAN trunking
B. An external router
C. An internal route processor
D. VLAN capable bridge
E. EtherChannel
Inter-VLAN routing has been implemented in the Company network. In VLAN routing，
what are some of the disadvantages of designing a router-on-stick configuration？ （）
A. InterVLAN routing cannot be filtered by the router.
B. The router becomes a single point of failure for the network.
C. Routers will not route STP BPDUs.
D. There is a possibility of inadequate bandwidth for each VLAN.
E. Additional overhead on the router can occur.
F. NetFlow Switching is required for InterVLAN accounting.
The Company network needs to pass traffic between VLANs.
Which device should be used to accomplish this？ （）
A. Hub
B. Switch
C. Router
D. Bridge
E. None of the other alternatives apply
最新試題
Which two statements are true when the extended system ID feature is enabled？ （）
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）？（）
If G1/0/1 on DS1 is shutdown， what will be the current priority value of the Vlan105’s group on DS1 ？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
Which three statements are true of the Link Aggregation Control Protocol （LACP）？（）
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？（）
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？（）
During routine maintenance， G1/0/1 on DS1 was shutdown. All other interface were up. DS2 became the active HSRP device for Vlan101 as desired. However， after G1/0/1 on DS1 was reactivated. DS1 did not become the active HSRP device as desired. What need to be done to make the group for Vlan101 function properly ？ （）
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）