单项选择题
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？（）
多项选择题 WhichthreestatementsaretrueoftheLinkAggregationControlProtocol（LACP）？（）
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？（）