單項選擇題

Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch?()

A. spanning-tree misconfiguration
B. speed mismatch configuration
C. cabling problem
D. configuration problem


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5.多項選擇題The network administrator is trying to add Switch1 to the network, but the 802.1Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem?()

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B. The trunking configuration mode on the other end is set to On.
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D. Cisco Discovery Protocol is not running on the other end.
E. There is a VTP domain name mismatch.
F. Switch1 does not support 802.1Q

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