Which Two Design Aspects Should a Metro Service Provider Consider

Multiple Choice

Which two design aspects should a metro service provider consider when planning to deploy REP for his backbone? (Choose two.)

A) Two REP segments can be connected redundantly at two points, one connection will be blocked as per the STP defined in IEEE 802.1d.
B) UDLD can be enabled on REP interfaces to detect unidirectional failures.
C) The guaranteed convergence recovery time is less than 50 ms for the local segment.
D) A REP segment is limited to a maximum of seven devices.
E) VLAN load balancing for optimal bandwidth usage is supported in any REP segment.