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


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1.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

2.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.

3.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.

4.多項(xiàng)選擇題

Refer to the exhibit. The show port-security interface fa0/1 command was issued on switch SW1.  Given the output that was generated,
 which two security statement are true? ()

A. Interface FastEthernet 0/1 was configured with the switchport port-security aging command.  
B. Interface FastEthernet 0/1 was configured with the switchport port-security protect command.  
C. Interface FastEthernet 0/1 was configured with the switchport port-security violation restrict  command.
D. When the number of secure IP addresses reaches 10, the interface will immediately shut down. 
E. When the number of secure MAC addresses reaches 10, the interface will immediately shut  down and an SNMP trap notification will be sent.

5.單項(xiàng)選擇題

Switch R1 has been configured with Private VLANs.
 With that type of PVLAN port should the default gateway be configured?()

A. Trunk
B. Isolated
C. Primary
D. Community
E. Promiscuous
F. None of the other alternatives apply

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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?()

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Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2?()

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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?()

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How are STP timers and state transitions affected when a topology change occurs in an STP environment?()

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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?()

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Refer to the exhibit. Which statement is true about the output?()

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