A service provider wants to use a controller to automate the provisioning of service function chaining. Which two overlay technologies can be used with EVPN MP-BGP to create the service chains in the

MPLS L2VPN is a separate VPN service type that uses MPLS as its transport, but it is not an overlay technology paired with EVPN MP-BGP for data center service function chaining.

802.1Q is a VLAN tagging standard for Layer 2 segmentation within a single domain and lacks the tunneling and scalability properties required for an EVPN overlay.

MPLSoGRE encapsulates MPLS within GRE tunnels but is not an EVPN-integrated overlay and is not used as the data plane for EVPN-based service function chaining in data centers.

VXLAN is a primary overlay encapsulation for EVPN-based data center fabrics, defined in RFC 8365, where EVPN MP-BGP serves as the control plane and VXLAN provides the data plane tunneling needed to stitch service functions together across the fabric.

Provider Backbone Bridging EVPN (PBB-EVPN, RFC 7623) combines 802.1ah MAC-in-MAC encapsulation with the EVPN control plane, forming a recognized overlay technology that supports service chaining by isolating and transporting tenant traffic across the data center.