What is the role of a control-plane node in a Cisco SD-Access architecture? 

Answer options:

A. fabric device that connects wired endpoints to the SD-Access fabric
B. map system that manages endpoint to device relationships
C. fabric device that connects APs and wireless endpoints to the SD-Access fabric
D. map system that manages External Layer 3 networks

B

Reference: https://netaavi.com/my-blog-1/f/overview-of-sda-fabric-solution