Which two statements accurately describe QoS in MPLS VPN (RFC 2547bis) networks? (Choose two.) 

Answer options:

A. MPLS QoS is a scalable and simple solution because it only requires application at the Edge-LSR.
B. MPLS can force packets into specific paths and bandwidths based on Edge-LSR mapping of DSCP to EXP.
C. DiffServ information must be made known to the LSR in the MPLS header using the EXP field.
D. On egress from the Edge-LSR, the EXP field is used for PHB QoS towards the CE.

BC