Dynamic trunk negotiation fails between S1 and S2, which cause of the problem is true?

exams 300-135 300-135 exam 0 Comments

Refer to the exhibit.

Dynamic trunk negotiation fails between S1 and S2, which cause of the problem is true?
A . there are different VTP domain for S1 and S2
B . there is a speed mismatch between S1 and S2
C . S1 has a FastEthernet interface
D . The switchport mode is set to desirable

Answer: A