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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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
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.
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.
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.
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
What is true about access control on bridged and routed VLAN traffic？ （）
A. Router ACLs can be applied to the input and output directions of a VLAN interface.
B. Bridged ACLs can be applied to the input and output directions of a VLAN interface.
C. Only router ACLs can be applied to a VLAN interface.
D. VLAN maps and router ACLs can be used in combination.
E. VLAN maps can be applied to a VLAN interface
On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15
What is the purpose of this global configuration command made on R1？（）
A. Discards ARP packets with invalid IP-to-MAC address bindings on trusted ports
B. Validates outgoing ARP requests for interfaces configured on VLAN 10， 11， 12， or 15
C. Intercepts， logs， and discards ARP packets with invalid IP-to-MAC address bindings
D. Intercepts all ARP requests and responses on trusted ports
E. None of the other alternatives apply
As the network technician at Company， you need to configure DHCP snooping on a new switch.
Which three steps are required？ （）
A. Configure the switch to insert and remove DHCP relay information （option-82 field） in forwarded DHCP request messages.
B. Configure DHCP snooping globally.
C. Configure the switch as a DHCP server.
D. Configure DHCP snooping on an interface.
E. Configure all interfaces as DHCP snooping trusted interfaces.
F. Configure DHCP snooping on a VLAN or range of VLANs.
In the use of 802.1X access control，
which three protocols are allowed through the switch port before authentication takes place？ （）
A. STP
B. CDP
C. EAP MD5
D. TACACS+
E. EAP-over-LAN
F. protocols not filtered by an ACL
The DAI feature has been implemented in the Company switched LAN.
Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）
A. DAI can be performed on ingress ports only.
B. DAI can be performed on both ingress and egress ports.
C. DAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.
D. DAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.
E. DAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.
F. DAI is supported on access and trunk ports only.
最新試題
Which router redundancy protocol cannot be configured for interface tracking？（）
Refer to the exhibit. Based on the output of the show spanning-tree command， which statement is true？ （）
DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group. What can be done to make the group function properly ？ （）
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？（）
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. 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？（）
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？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）