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单项选择题 Refer to the exhibit.  What is the problem with this configuration?()

A、 Spanning tree PortFast cannot be configured on a port where a voice VLAN is configured.

B、 Sticky secure MAC addresses cannot be used on a port when a voice VLAN is configured.

C、 Spanning tree PortFast cannot be configured on a port when a sticky secure MAC address is  used.

D、 The switch port must be configured as a trunk.

  • B
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