City automation staff want a programmatic northbound interface so 311 environments can request virtual networks the same way they already request VMs. Which SDN building block is that interface?
Select an answer to reveal the explanation.
Short Explanation
Northbound is the front door where scripts knock. That door is the NSX Manager API on the management plane—not the yellow ESXi console, not Horizon Client, and not a live-response shell.
Full Explanation
NSX Manager exposes the northbound programmatic API on the management plane so automation can create and query virtual networks and security objects without per-device CLI. Identify that API as the SDN northbound building block; this exam does not require writing REST payloads. The ESXi DCUI is a host console. Horizon Client and Carbon Black Live Response are not NSX northbound interfaces.