Which three statements about AToM are true? (Chooose three.)
A. It supports interworking for Frame Relay, PPP, and Ethernet, but not ATM.
B. The attachment circuit is configured with the xconnect command.
C. It requires MPLS between PE routers.
D. The PE routers must share the same VC identifier.
E. IP CEF should be disabled on the PE routers.
F. It requires Layer 3 routing between the PE and CE router.
