Question 2: An engineer wants to add VLAN 10 to a trunk that only carries VLANs 15 and 20. The engineer issues the command "switchport trunk allowed vlan 10". What VLAN(s) are allowed on the link after this command?

Choice: (choose correct answer): 

() VLAN 10 only
() VLAN 15 only
() VLANs 15 and 20 only
() VLANs 10, 15, and 20


Answer: VLAN 10 only