What Is A Fiber Optic Backbone?

What Is A Fiber Optic Backbone? What is building fiber optic backbone? The building fiber optic backbone is the pillar of your in-building network. It requires higher bandwidths, at greater distances, connecting the Main Distribution Area (MDA) to all Telecommunications Rooms (TRs)/Interconnect Distribution Frames (IDFs) on each floor. Which of the following uses optical fiber?