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 & V* o/ W& t% N1 n6 s7 w. z# qtrunk configuration worked fine. What are three possible causes of this problem? (Choose three)5 B* Z" z+ q4 t: X# a2 X
A. The trunking configuration mode on Switch1 is set to Off. $ u& U+ y& e# B% s0 lB. The trunking configuration mode on the other end is set to On.! ~" ]# _; L4 T& d; N4 ~. u
C. The trunking configuration mode on the other end is set to Desirable.# [& J. x! H& `* H3 P U
D. Cisco Discovery Protocol is not running on the other end. ! k8 a' n5 P/ \1 _+ c' M' V7 HE. There is a VTP domain name mismatch.+ T5 o- v5 Z# Q& p* R! `6 U: b. ?( P
F. Switch1 does not support 802.1Q.3 Y/ k, F7 _7 M# j6 s