多項(xiàng)選擇題

The Company security administrator wants to prevent VLAN hopping on the network. 
What is one  method that can be used to do this?  ()

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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1.多項(xiàng)選擇題

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.

2.單項(xiàng)選擇題

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.

3.單項(xiàng)選擇題

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

4.多項(xiàng)選擇題

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

5.多項(xiàng)選擇題

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.

6.單項(xiàng)選擇題

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

7.單項(xiàng)選擇題

pany has implemented numerous multilayer switches that utilize FIB tables. 
Which statement  is true about the Forward Information Base (FIB) table?()

A. The FIB is derived from the IP routing table and is optimized for maximum lookup throughput.  
B. The FIB table is derived from the Address Resolution Protocol table, and it contains Layer 2  rewrite (MAC) information for the next hop.
C. When the FIB table is full, a wildcard entry redirects traffic to the Layer 3 engine.
D. The FIB lookup is based on the Layer 2 destination MAC address.
E. None of the other alternatives apply

8.單項(xiàng)選擇題

Refer to the exhibit. 
What type of attack is being defended against? ()

A. snooping attack
B. rogue device attack
C. STP attack
D. VLAN attack
E. spoofing attack
F. MAC flooding attack

9.單項(xiàng)選擇題

Refer to the exhibit. 
What will happen to traffic within VLAN 14 with a source address of  172.16.10.5?()

A. The traffic will be forwarded to the router processor for further processing.
B. The traffic will be dropped.
C. The traffic will be forwarded to the TCAM for further processing.
D. The traffic will be forwarded without further processing.

10.單項(xiàng)選擇題

Refer to the exhibit. 
What will happen when one more user is connected to interface FastEthernet  5/1?()

A. The first address learned on the port will be removed from the secure address list and be  replaced with the new address.
B. All secure addresses will age out and be removed from the secure address list. This will cause  the security violation counter to increment.
C. The packets with the new source addresses will be dropped until a sufficient number of secure  MAC addresses are removed from the secure address list.
D. The interface will be placed into the error-disabled state immediately, and an SNMP trap  notification will be sent.

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