What is true about peer to peer VPN’s? (Select all that apply.)

A.
The customer is isolated from the provider network.

B.
The provider routers carry all the customers routes.

C.
They are easy to implement.

D.
They can provide optimum routing between sites.

Explanation:

Option D is also correct as page 139 states"Routing between the customer sites is always optimal, as the provider routers know the customers’s network topology and can thus establish optimum inter-site routing.
Reference: MPLS and VPN Architectures (CCIP edition)