For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）
- A、root port
- B、backup port
- C、designated port
- D、alternate port
正确答案:A
答案解析:有
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思科认证考试
思科认证考试
For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）
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