单项选择题

A.All ports will temporarily transition to the learning……

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

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.

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热门试题

多项选择题WhattwothingswilloccurwhenanedgeportreceivesaBPDU？（）

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.

单项选择题WhatwilloccurwhenanonedgeswitchportthatisconfiguredforRapidSpanningTreedoesnotreceiveaBPDUfromitsneighborforthreeconsecutivehellotimeintervals？（）

A.RSTP information is automatically aged out.
B.The port sends a TCN to the root bridge.
C.The port moves to listening state.
D.The port becomes a normal spanning tree port.

单项选择题WhichoptioncorrectlyidentifiestheCiscoIOSswitchingmethodsindescendingorderfromthefastestmethodtotheslowestmethod？（）

A.CEF， distributed CEF （dCEF）， fast switching， process switching
B.distributed CEF （dCEF）， CEF， fast switching， process switching
C.fast switching， process switching， distributed CEF （dCEF）， CEF
D.process switching， fast switching， distributed CEF （dCEF）， CEF
E.process switching， distributed CEF （dCEF）， CEF， fast switching
F.process switching， CEF， distributed CEF （dCEF）， fast switching

多项选择题WhichthreestatementsaretrueoftheLinkAggregationControlProtocol（LACP）？（）

A.LACP is used to connect to non-Cisco devices.
B.LACP packets are sent with the command channel-group 1 mode desirable.
C.LACP packets are sent with the command channel-group 1 mode active.
D.Standby interfaces should be configured with a higher priority.
E.Standby interfaces should be configured with a lower priority.

多项选择题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？（）

A.Changing the bridge priority of S1 to 4096 would improve network performance.
B.Changing the bridge priority of S1 to 36864 would improve network performance.
C.Changing the bridge priority of S2 to 36864 would improve network performance.
D.Changing the bridge priority of S3 to 4096 would improve network performance.
E.Disabling the Spanning Tree Protocol would improve network performance.
F.Upgrading the link between S2 and S3 to Gigabit Ethernet would improve performance.