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？ （）
Which three statements are true of the Link Aggregation Control Protocol （LACP）？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
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？（）
Which router redundancy protocol cannot be configured for interface tracking？（）
Which statement is correct about RSTP port roles？（）
Refer to the exhibit. All network links are FastEthernet. Although there is complete connectivity throughout the network， Front Line users have been complaining that they experience slower network performance when accessing the server farm than the Reception office experiences. Based on the exhibit， which two statements are true？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
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？（）
Which two statements about the various implementations of STP are true？（）