In MEF SD-WAN, what does a service demarcation point define?

• A. Demarcation points define boundary between provider-controlled infrastructure and customer/tenant-managed components, typically at the edge or CE device.
• B. Boundaries between different tenants within cloud.
• C. Boundary between core and edge routers.
• D. Boundary between data plane and control plane.

Answer: (A)

In MEF SD-WAN, a service demarcation point is the boundary where the provider’s network ends and the customer’s equipment or tenant network begins. It defines where responsibility for management, provisioning, and fault handling shifts between the service provider and the customer, and is typically located at the edge or customer edge (CE) device. This handoff is what enables clear SLAs and telemetry boundaries. The other options describe boundaries that aren’t the provider–customer handoff in MEF SD-WAN: cloud tenancy boundaries, core vs. edge router boundaries, or the internal division between data plane and control plane.