单项选择题
A.This switch has more than one interface connected to the root network segment in VLAN 2.
B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.
C.This switch interface has a higher path cost to the root bridge than another in the topology.
D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.
单项选择题 Refer to the exhibit.All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?（）
多项选择题 Which of the following statements describe the network shown in the graphic? （）
单项选择题 Which command enables RSTP on a switch?（）
