Which of the following carrier Ethernet services is VLAN based?

The correct answer states that all of the listed services are VLAN-based, which is accurate because each of these Carrier Ethernet services utilizes VLAN (Virtual Local Area Network) tagging as a fundamental aspect of their operation.

EVPL, or Ethernet Virtual Private Line, establishes point-to-point connectivity and relies on VLANs to provide dedicated paths for the transportation of Ethernet frames across the network, ensuring that the data is delivered securely and efficiently to the designated endpoint.

EVP-Tree stands for Ethernet Virtual Private Tree, and it is utilized for multipoint-to-multipoint communication. This service implements VLAN tagging to segregate traffic for various customers and applications, ensuring that the virtualized segments remain isolated while allowing for multicast traffic to be efficiently delivered across the network.

EVP-LAN, or Ethernet Virtual Private LAN, is built for multipoint-to-multipoint communication at a local area scale. It employs VLANs to allow for seamless communication across different locations while avoiding the complexity of managing individual connections. This service provides a broader broadcast domain and ensures that all customers sharing a service can do so without interfering with each other's traffic.

Each of these Ethernet services capitalizes on VLAN technology to deliver flexibility, enhance traffic management, and ensure secure and isolated communication paths suitable for a range