Which three statements about MPLS VRFs are true? (Choose three)
A.
Only on interface can be assigned to a single VRF.
B.
Only one VRF can be assigned to a single interface.
C.
A VRF is a routing and forwarding instance for a VPN.
D.
VPN sites share a VRF if they are in an overlapping VPN.
E.
A single VPN site or many VPN sites can share the same VRF as long as these sites share
exactly the
same connectivity requirements.
Explanation:
B: You can have multiple interfaces associated with a VRF. But only one VRF associated with a
particular
interface (meaning an interface cannot be associated with multiple VRFs). E (not D): According to
the “Implementing Cisco MPLS” Student Guide (Text Part Number: 97-1154-01)
Volume 2, version 1.0, page 7-64 Impact of complex VPN topologies on Virtual Routing Tables:
– A virtual routing table in a PE router can be used only for sites with identical connectivityrequirements.