Câu 155: 300-410: Implementing Cisco Enterprise Advanced Routing and Services (ENARSI)

How does an MPLS Layer 3 VPN function?

1. A. multiple customer sites interconnect through service provider network to create secure tunnels between customer edge devices
2. B. multiple customer sites interconnect through a service provider network using customer edge to provider edge connectivity — đáp án hiện tại
3. C. set of sites interconnect privately over the Internet for security
4. D. set of sites use multiprotocol BGP at the customer site for aggregation