Dongle – encrypted physical hardware lock, very similar to a USB flash drive which contains the product licenses.
WIBU-KEY drivers – drivers for the dongle.
Render Node – machine that is doing the actual rendering.
Distributed Rendering – dividing frames to buckets and rendering them on different render nodes by using V-Ray DR spawner, V-Ray Standalone or a V-Ray RT render server.
Network Rendering – rendering whole frames on each render node, for example by submitting jobs to job managers like Backburner.
V-Ray DR spawner – a V-Ray tool used to start V-Ray stand-alone in server mode for Distributed Rendering.
V-Ray SDK – a V-Ray Software Development Kit used for creation of custom materials and geometry.