In hierarchical VPLS implementations, which two access architectures can be used between the
UPE and NPE? (Choose two.)

A.
EoMPLS

B.
MP-BGP

C.
Frame Relay

D.
802.1ad

Explanation:
http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/12.2_52_ey/c
onfiguration/guide/swmpls.html#wp1244272
H-VPLS uses spoke connections, usually between Layer 2 switches acting as the CE and PE
devices at the service provider’s point-of presence (POP). The spoke connections can be either an
IEEE 802.1Q tagged connection or an MPLS LSP.