Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?（）
- A、the switch with the lowest MAC address
- B、the switch with the higest MAC address
- C、the switch witch the higest IP address
- D、the switch with the lowest IP address
正确答案:A
答案解析:有
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