单项选择题

A.RSTP information is automatically aged out.B.The port……

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？（）

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.

<上一题目录下一题>

热门试题

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.

多项选择题WhichtwostatementsaretruewhentheextendedsystemIDfeatureisenabled？（）

A.The BID is made up of the bridge priority value（two bytes） and bridge MAC address （six bytes）.
B.The BID is made up of the bridge priority （four bits）， the system ID （12 bits）， and a bridge MAC address （48 bits）.
C.The BID is made up of the system ID （six bytes） and bridge priority value （two bytes）.
D.The system ID value is the VLAN ID （VID）.
E.The system ID value is a unique MAC address allocated from a pool of MAC addresses assigned to the switch or module.
F.The system ID value is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.

多项选择题Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statements about the STP process for VLAN 200 are true？（）

A.BPDUs will be sent out every two seconds.
B.The time spent in the listening state will be 30 seconds.
C.The time spent in the learning state will be 15 seconds.
D.The maximum length of time that the BPDU information will be saved is 30 seconds.
E.This switch is the root bridge for VLAN 200.
F.BPDUs will be sent out every 10 seconds.