FOA CFOT CERTIFICATION EXAM V11 QUESTIONS
& ANSWERS WITH COMPLETE SOLUTION.
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
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
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
& ANSWERS WITH COMPLETE SOLUTION.
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
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
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
