The DTP questions are terrible. When DTP is set to auto it wont be able to negotiate a trunk, so the show int trunk command will return no output. I still agree, the answer should still be D. DTP needs to be removed from IOS! Complete rubbish and more effort should be spent on writing the questions on the topic.

remember Auto Auto => both are lazy and no one forms a trunk (like saying after you, no after you sir) Auto desirable => Trunk because of after you, of thanks i will Desirable Auto => Trunk because of the same Desirable Desirable => Trunk there will be a fight about who goes first

when both are on Auto, they become access mode, when both are desirable, they become trunk mode, so D is correct

I agree, how does the output show the status is "trunking" when the trunk is not working?

Actually both sides are trunking in the "wait" mode, until a partner on the other side is found(!)

I think it is because you configure the interface in trunk mode, it is not because the trunk link is working

D is the right answer!

Selected Answer: D The response is D

D is correct.

jajajaja nice example! Regards