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单项选择题

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

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

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热门试题

单项选择题Refer to the exhibit. LACP has been configured on Switch1 as shown.  Which is the correct command set to configure LACP on Switch2？（）

A.Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode auto
B.Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode passive
C.Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode desirable
D.Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode on

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

A.ip routing
B.no ip routing
C.router eigrp 1
D.no router eigrp 1
E.mls qos
F.no mls qos

单项选择题WhatmustbethesametomakemultipleswitchespartofthesameMultipleSpanningTree（MST）？（）

A.VLAN instance mapping and revision number
B.VLAN instance mapping and member list
C.VLAN instance mapping， revision number， and member list
D.VLAN instance mapping， revision number， member list， and timers

单项选择题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？（）

A.All ports will be in forwarding mode.
B.All ports in VLAN 10 will be in forwarding mode.
C.All ports in VLAN 10 will be in forwarding mode and all ports in VLAN 20 will be in blocking mode.
D.All ports in VLAN 10 will be in forwarding mode and all ports in VLAN 20 will be in standby mode.

多项选择题WhichtwostatementsaretrueaboutBPDUport-guardandBPDUfiltering？（）

A.BPDU port-guard can be enabled globally， whereas BPDU filtering must be enabled on a per-interface basis.
B.When globally enabled， BPDU port-guard and BPDU filtering apply only to PortFast enabled ports.
C.When globally enabled， BPDU port-guard and BPDU filtering apply only to trunking-enabled ports.
D.When a BPDU is received on a BPDU port-guard enabled port， the interface goes into the err-disabled state.
E.When a BPDU is received on a BPDU filtering enabled port， the interface goes into the err-disabled state.
F.When a BPDU is received on a BPDU filtering enabled port， the interface goes into the STP blocking state.