单选题
Refer to the exhibit. Switch port FastEthernet 0/24 on AlSwitch1 will be used to create an IEEE 802.1Q- complaint trunk to another switch. Based on the output shown, What is the reason the trunk does not form, even thought the proper cabling has been attached?（） 
发布日期：2021-01-28
VLANs have not been created yet
An IP address must be configured for the port
The port is currently configured for access mode
The correct encapsulation type has not been configured
The no shutdown command has not been entered for the port
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