In the case of Ethernet transport, which two types of attachment circuits does L2TPv3 support?
(Choose two.)

A.
port tunneling on the Ethernet subinterface

B.
VLAN tunneling on the Ethernet trunk

C.
port tunneling on the Ethernet interface

D.
VLAN tunneling on the Ethernet VLAN subinterface

E.
port tunneling on the Ethernet trunk

Explanation:
L2TPv3 can be configured on either a physical port or on a subinterface. The first is known as Port
tunneling and the second as vlan tunneling.