Which two statements about IEEE 802.1ah Provider Backbone Bridge are true? (Choose two.)
A. IEEE 802.1ah enables geographically separated LAN segments to be interconnected as a single bridged domain over an MPLS network, knowing all thecustomer MAC addresses.
B. IEEE 802.1ah provides the same Ethernet Layer 2 network services as VLAN does, but with greater extensibility and flexibility by overlay scheme over aLayer 3 network.
C. IEEE 802.1ah allows a fewer number of pseudowires in the IP/MPLS core to transport a large number of customer services.
D. IEEE 802.1ah redefines the flooding and forwarding behavior to avoid loops by not flooding frames received from one member to other members of the samegroup.
E. IEEE 802.1ah provides a means for interconnecting multiple provider bridged to build a large-scale, end-to-end, Layer 2 provider bridged network.
