Which MPLS VPN implementation allows selected sites in one simple VPN to communicate with selected sites of a second VPN?
A.
Central services VPN
B.
Managed CE router services VPN
C.
Overlapping VPN
D.
Managed PE router services VPN
Explanation:
The "selected sites" are usually the central sites of two customers which create a vpn between them for exchanging data.
The description of overlapping vpn: "Overlapping VPNs are used to provide connectivity between segments of two vpns"