Which two command sequences must you configure on a switch to establish a Layer 3 EtherChannel with an open-standard protocol? (choose two)
A . interface GigabitEthernet0/0/1 Channel-group 10 mode active
B . interface GigabitEthernet0/0/1 Channel-group 10 mode auto
C . interface GigabitEthernet0/0/1 Channel-group 10 mode on
D . interface port-channel 10 no switchport
ip address 172.16.0.1 255.255.255.0
E . interface port-channel 10 switchport
Switchport mode trunk
Answer: AD