Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?

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问题 Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?

选项 A、        802.3ad
B、        802.1w
C、        802.1Q
D、        802.1d

答案C

解析 动态中继协议DTP,是 VLAN 组中思科的私有协议,主要用于协商两台设备间链路上的中继过程及中继封装 802.1Q 类型。
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