Which two statements are correct with regard to route distinguisher as defined in RFC 4364 AKA
IP-VPN (MPLS-VPN)? (Choose two.)

A.
The configuration to define Route-Distinguisher is ip vrf CNT rd 1:1
B.
A route distinguisher can be imported and exported to and from a VRF
C.
Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path
algorithm.
D.
Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.