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FOA CFOT Certification Exam v11 Questions With Complete Solutions

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A fiber optic inspection microscope can increase the danger of high powered light sources by focusing the light coming out of a fiber into your eye. True or False? correct answer: True A fiber optic power meter measures absolute power in dBM (dB referenced to 1 mw) and, when used with a light source, can measure insertion loss expressed in dB. True or False? correct answer: True When we say 62.5/125 fiber, what does "62.5" mean? correct answer: core size, the diameter in microns When we say 50/125 fiber, what does "125" mean? correct answer: cladding size, the diameter in microns OM3 and OM4 multimode fiber with a 50/125 micron core are now a popular option in premises cabling systems because they _____. correct answer: Are "laser optimized" which gives more distance capability with gigabit networks using laser sources In-multimode fiber, the attenuation (reduction in optical power) of the fiber is _____ at 850 nm than at 1300 nm. correct answer: Higher Which of the following represents a singlemode (smaller core size) fiber size? correct answer: 9/125 micron

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