What Cisco technology protects against Spanning-Tree Protocol manipulation？（）
- A、 Spanning tree protect
- B、 Root Guard and BPDU Guard
- C、 Unicast Reverse Path Forwarding
- D、 MAC spoof guard
- E、 Port Security
正确答案:B
答案解析:有
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What Cisco technology protects against Spanning-Tree Protocol manipulation？（）
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