The type of scoring where the ball hitting the floor on one side of the net results in a point for the other team is called "Rally scoring."
In rally scoring, a point is scored on every serve, regardless of which team served. This means that whether the serving team or the receiving team wins the rally, a point is awarded.
This scoring system is commonly used in sports like volleyball, badminton, and table tennis. It adds a fast-paced and competitive element to the game since points can be scored by either team on any rally.
Therefore, in the context of the question, the scoring system described is rally scoring.