FOA CFOT CERTIFICATION EXAM V11
2024\2025
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? - 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? - ANSWER- True
When we say 62.5/125 fiber, what does "62.5" mean? - ANSWER- core
size, the diameter in microns
When we say 50/125 fiber, what does "125" mean? - 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 _____. -
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. - ANSWER- Higher
Which of the following represents a singlemode (smaller core size) fiber
size? - ANSWER- 9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. -
ANSWER- greater
Most plastic optical fibers are _____. - ANSWER- large core step-index
When you strip singlemode or graded index multimode mode glass fiber,
you are removing the ____. - ANSWER- Primary buffer coating
The proper method of pulling optical fiber cables is to attach the pull
wire or tape to the ____ of the cable. - ANSWER- Strength members
According to the references, hybrid cables are cables that contain ____. -
ANSWER- Both singelmode and multimode optical fibers
2024\2025
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? - 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? - ANSWER- True
When we say 62.5/125 fiber, what does "62.5" mean? - ANSWER- core
size, the diameter in microns
When we say 50/125 fiber, what does "125" mean? - 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 _____. -
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. - ANSWER- Higher
Which of the following represents a singlemode (smaller core size) fiber
size? - ANSWER- 9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. -
ANSWER- greater
Most plastic optical fibers are _____. - ANSWER- large core step-index
When you strip singlemode or graded index multimode mode glass fiber,
you are removing the ____. - ANSWER- Primary buffer coating
The proper method of pulling optical fiber cables is to attach the pull
wire or tape to the ____ of the cable. - ANSWER- Strength members
According to the references, hybrid cables are cables that contain ____. -
ANSWER- Both singelmode and multimode optical fibers
