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FOA CFOT CERTIFICATION EXAM V11
QUESTIONS WITH SOLUTIONS 2025/2026
ALREADY GRADED A+
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
, 2
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
Singlemode fiber has _____ bandwidth than multimode fiber. - correct-answer -
greater
Most plastic optical fibers are _____. - correct-answer -large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - correct-answer -Primary buffer coating
, 3
The proper method of pulling optical fiber cables is to attach the pull wire or tape
to the ____ of the cable. - correct-answer -Strength members
According to the references, hybrid cables are cables that contain ____. - correct-
answer -Both singelmode and multimode optical fibers
What type of fiber cable design allows for large numbers of fibers with ultra-high
density, small size (diameter) and lower cost? - correct-answer -ribbon
According to the references, composite cables refer to cables that contain ____> -
correct-answer -both optical fibers and copper conductors
Which optical fiber cables must be grounded? - correct-answer -all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. - correct-answer -Be
rated to meet the requirements of local building and fire codes
FOA CFOT CERTIFICATION EXAM V11
QUESTIONS WITH SOLUTIONS 2025/2026
ALREADY GRADED A+
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
, 2
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
Singlemode fiber has _____ bandwidth than multimode fiber. - correct-answer -
greater
Most plastic optical fibers are _____. - correct-answer -large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - correct-answer -Primary buffer coating
, 3
The proper method of pulling optical fiber cables is to attach the pull wire or tape
to the ____ of the cable. - correct-answer -Strength members
According to the references, hybrid cables are cables that contain ____. - correct-
answer -Both singelmode and multimode optical fibers
What type of fiber cable design allows for large numbers of fibers with ultra-high
density, small size (diameter) and lower cost? - correct-answer -ribbon
According to the references, composite cables refer to cables that contain ____> -
correct-answer -both optical fibers and copper conductors
Which optical fiber cables must be grounded? - correct-answer -all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. - correct-answer -Be
rated to meet the requirements of local building and fire codes
