Refer to the exhibit.If the devices produced the given output,what is the cause of the EtherChannel problem?（） 
- A、There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.
- B、There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.
- C、There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interface.
- D、SW1's Fa0/1 interface is administratively shut down.
正确答案:A
答案解析:有
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