Certified Fiber Optics Final Exam
UPDATED 2025
the applications of optical fiber communications have increased at a rapid rate, since the
first commercial instillation of a fiber optic system in the -Correct Answer ✔1970's
The loss of a signal strength is called -Correct Answer ✔attenuation
A single binary digit Is called a -Correct Answer ✔Bit
An eight bit group is called a -Correct Answer ✔Bite
The _______ is used to express gain or loss in a fiber optic system or component -
Correct Answer ✔Decibel
1mw of power is ___dbm -Correct Answer ✔0 dbm
A loss of 3dbm is a _____ percent loss in power. -Correct Answer ✔50%
Power is measured ______in a fiber optic system -Correct Answer ✔dbm
Loss is measured in____ in a fiber optic system -Correct Answer ✔db
light is electromagnetic energy with a ____wavelength and ____ frequency than radio
waves -Correct Answer ✔shorter, higher
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The _____ is used to measure light -Correct Answer ✔measure
the deflection of light is called_____ -Correct Answer ✔refraction
when light passes from one medium to another some of the light energy is _____back
into the first material -Correct Answer ✔Reflected
The refractive index profile describes the relation between the indices of ____ and
______.The core of the multimode optical fiber has the highest refractive index. -Correct
Answer ✔Core, Cladding
What makes up an optical fiber -Correct Answer ✔core, cladding, coating
mode is another name for -Correct Answer ✔Path
single mode fiber have a _____core than multimode fibers -Correct Answer ✔smaller
the part of the multimode optical fiber that functions as a mode filter is the______ -
Correct Answer ✔cladding
The standard core diameters of multimode fiber are___ and ___um. -Correct Answer
✔50nm, 62.5
_______strength is the ability of a fiber to be stretched or pulled without breaking -
Correct Answer ✔Tensile
The Tensile strength of a fiber is_______ when it is bent -Correct Answer ✔Refracted
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