When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the
link?
A.
Each single VLAN, or VLAN range, must be specified with the vtp domain command.
B.
By default, all defined VLANs are allowed on the trunk.
C.
Each single VLAN, or VLAN range, must be specified with the switchport mode command.
D.
Each single VLAN, or VLAN range, must be specified with the vlan database command.
Explanation:
By default a trunk link carries all the VLANs that exist on the switch. This is because all VLANs are
active on a trunk link; and as long as the VLAN is in the switch’s local database, traffic for that
VLAN is carried across the trunks. You can elect to selectively remove and add VLANs from a
trunk link.