Fiber Install and Activation Exam Questions and Correct Answers 2026/2027

Fiber Install and Activation Exam Questions and Correct Answers 2026/2027 Which standards organization is considered to be the creator of the worlds' most recognized communications standards, known as "recommendations"? - Correct Answer The International Telecommunications Union (ITU) In which component in a fiber-optics communication system do changes to the intensity of the optical signal occur? - Correct Answer The optical transmitter What is a drawback of using Fabry-Perot (F-P)lasers in high-speed data (HSD) networks? - Correct Answer The emission of a number of discrete wavelengths or side modes. Why are laser diodes most effective when coupled to singlemode fiber? - Correct Answer Its high coupled power, directionality, and speed. What are the factors that contribute to an optical receiver's sensitivity? - Correct Answer Noise, responsivity, response time, linear response, back reflection, optical detector. What is a positive-intrinsic-negative (PIN) diode? - Correct Answer An optical detector with current flow that is linear to the intensity of light photons, with one electron/hole pair created for every absorbed photon until saturation. What does the amplification process in an avalanche photodiode (APD) introduce into the electrical output of an optical detector? - Correct Answer Noise What function does the detector in an optical receiver perform? - Correct Answer Conversion of an optical carrier to an electrical signal, and demodulation of the modulated optical carrier.