Which of the following trunking modes are unable to request their ports to convert their links into trunk links? (Choose two)
A.
Negotiate
B.
Designate
C.
Nonegotiate
D.
Auto
E.
Manual
F.
Off
Explanation:
Auto is a trunking mode but does not actively negotiate a trunk. It requires opposite side to be trunk or desirable, and will only respond to requests from the other trunk link. No-negotiate will configure the link to be unable to dynamically become a trunk; since no requests will be sent it will not respond to requests from other trunk links from a different switch.
Incorrect Answers:
A, B, E, F: These choices are wrong because they are not valid trunking modes