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FOA CFOT Certification Exam v11
Questions with Detailed Verified
Answers
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? Ans: 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? Ans: True
When we say 62.5/125 fiber, what does "62.5" mean? Ans: core
size, the diameter in microns
When we say 50/125 fiber, what does "125" mean? Ans: 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
_____. Ans: 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. Ans: Higher
Which of the following represents a singlemode (smaller core size)
fiber size? Ans: 9/125 micron
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Singlemode fiber has _____ bandwidth than multimode fiber. Ans:
greater
Most plastic optical fibers are _____. Ans: large core step-index
When you strip singlemode or graded index multimode mode
glass fiber, you are removing the ____. Ans: Primary buffer coating
The proper method of pulling optical fiber cables is to attach the
pull wire or tape to the ____ of the cable. Ans: Strength members
According to the references, hybrid cables are cables that
contain ____. Ans: 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? Ans:
ribbon
According to the references, composite cables refer to cables
that contain ____> Ans: both optical fibers and copper conductors
Which optical fiber cables must be grounded? Ans: all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. Ans: Be
rated to meet the requirements of local building and fire codes
Optical fiber cable with a orange colored jacket generally
indicates the cable contains _____. Ans: Multimode fiber
Premises cable jackets are usually color-coded in what color to
indicate singlemode fiber? Ans: Yellow
FOA CFOT Certification Exam v11
Questions with Detailed Verified
Answers
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? Ans: 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? Ans: True
When we say 62.5/125 fiber, what does "62.5" mean? Ans: core
size, the diameter in microns
When we say 50/125 fiber, what does "125" mean? Ans: 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
_____. Ans: 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. Ans: Higher
Which of the following represents a singlemode (smaller core size)
fiber size? Ans: 9/125 micron
, Page | 2
Singlemode fiber has _____ bandwidth than multimode fiber. Ans:
greater
Most plastic optical fibers are _____. Ans: large core step-index
When you strip singlemode or graded index multimode mode
glass fiber, you are removing the ____. Ans: Primary buffer coating
The proper method of pulling optical fiber cables is to attach the
pull wire or tape to the ____ of the cable. Ans: Strength members
According to the references, hybrid cables are cables that
contain ____. Ans: 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? Ans:
ribbon
According to the references, composite cables refer to cables
that contain ____> Ans: both optical fibers and copper conductors
Which optical fiber cables must be grounded? Ans: all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. Ans: Be
rated to meet the requirements of local building and fire codes
Optical fiber cable with a orange colored jacket generally
indicates the cable contains _____. Ans: Multimode fiber
Premises cable jackets are usually color-coded in what color to
indicate singlemode fiber? Ans: Yellow
