ETA Fiber 96 practice questions With 100% Correct Answers

Light is electromagnetic energy with ____ frequency and a ______ shorter wavelength - ️️Higher then shorter fiber optics transmission takes place in _____ portion of the light spectrum - ️️IR A simple fiber optic System consist of what 4 parts - ️️Transmitter, fiber optic cable, receiver, connecters What absolute power is Dbm referenced to - ️️1 milliwatt Absolute power in optical fiber is specified as - ️️Dbm Attenuation in optical fiber is lowest at what wavelength - ️️1550 What are the three most common wavelength windows used for communication thru optical fibers - ️️1550, 850, 1300 In North America what year was the first fiber optic telephone system installed - ️️1977 Single-mode fiber optic systems typically use what light source - ️️Laser diode Multimode Fiber optic transmitters typically use what two low cost light sources - ️️Led, VCSEL