Which three statements about dot1Q trunking are true? (Choose three)
A. A trunk port can be a tunnel port.
B. The default switchport mode is dynamic desirable.
C. A trunk port can be a secure port.
D. Trunk ports negotiate encapsulation by default.
E. Enabling 802.1x on a trunk port results in an error.
F. The default switchport mode is dynamic auto.
D,E,F
Answer “A” is incorrect (from Cisco’s site):
“Tunnel ports are not trunks. Any commands to configure trunking are inactive while the port is configured as a tunnel port.”