Refer to the exhibit. For what purpose is the command show ip cef used？（）
A.to display rewritten IP unicast packets
B.to display ARP resolution packets
C.to display ARP throttling
D.to display TCAM matches
E.to display CEF-based MLS lookups
F.to display entries in the Forwarding Information Base （FIB）
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Refer to the exhibit. Which statement is true about the output？（）
A.The port on switch CAT1 is forwarding and sending BPDUs correctly.
B.The port on switch CAT1 is blocking and sending BPDUs correctly.
C.The port on switch CAT2 is forwarding and receiving BPDUs correctly.
D.The port on switch CAT2 is blocking and sending BPDUs correctly.
E.The port on switch CAT3 is forwarding and receiving BPDUs correctly.
F.The port on switch CAT3 is forwarding， sending， and receiving BPDUs correctly.
Refer to the exhibit.
What does the command channel-group 1 mode desirable do？ （）
A.enables LACP unconditionally
B.enables PAgP only if a PAgP device is detected
C.enables PAgP unconditionally
D.enables Etherchannel only
E.enables LACP only if a LACP device is detected
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？（）
A.The switch port attached to LinkB will not transistion to up.
B.One of the two switch ports attached to the hub will go into blocking mode when a BPDU is received.
C.Both switch ports attached to the hub will transition to the blocking state.
D.A heavy traffic load could cause BPDU transmissions to be blocked and leave a switching loop.
E.The switch port attached to LinkA will immediately transition to the blocking state.
A.All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.
B.All ports will transition temporarily to the learning state for a period equal to the forward delay interval.
C.The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.
D.The default hello time for configuration BDPUs will be reduced for the period of the max age timer.
A.The port immediately transitions to the Forwarding state.
B.The switch generates a Topology Change Notification （TCN） BPDU.
C.The port immediately transitions to the err-disable state.
D.The port becomes a normal STP switch port.
最新試題
Refer to the exhibit. Which statement is true about the output？（）
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？（）
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？（）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
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. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
Which two statements are true when the extended system ID feature is enabled？ （）
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？（）
Refer to the exhibit. Based on the output of the show spanning-tree command， which statement is true？ （）
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？（）