What provides a point-to-point path using UCS?

• A. VPN
• B. GRE
• C. MPLS
• D. TVC (Tunnel Virtual Connection)

Answer: (D)

Think about how a dedicated path between two sites is created in this model: you want a single, direct tunnel that connects the two endpoints, carrying traffic as if there were a private link. That direct path is provided by a Tunnel Virtual Connection. A TVC defines the tunnel endpoints and carries user traffic across the service provider network, delivering a true point-to-point path for the Unified Connectivity Service.

Other options describe different concepts: a VPN is a security overlay that can connect sites but isn’t the formal MEF service construct for a guaranteed point-to-point tunnel; GRE is just a tunneling protocol without the service-level guarantees or topology definition of a TVC; MPLS describes a transport mechanism that can route traffic, but it’s not the dedicated UCS tunnel construct used to establish a point-to-point path.