JNCIP-DC

A customer wants to introduce EVPN-VXLAN into an existing Ethernet-based data center where VLANs must be extended between leaf devices but no routing between VLANs is required inside the fabric. Which statement correctly describes the resulting spine device behavior in this model?

An operator is scaling an IP fabric beyond a single pod and needs to provide inter-pod and inter-data center connectivity by adding an additional layer above the spine. Which fabric design and added layer does the reference architecture describe for this requirement?