FOA CFOT CERTIFICATION EXAM 2025 ACTUAL EXAM
WITH DETAILED VERIFIED ANSWERS / ALREADY
GRADED A+ // BRAND NEW!
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
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
Optical fiber cable with a orange colored jacket generally indicates the cable contains
_____. CORRECT ANSWER Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? CORRECT ANSWER Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized
50/125 OM3 or OM4 fiber? CORRECT ANSWER Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____.
CORRECT ANSWER Any or all of these as appropriate (Pull form the center to the
ends, Use a breakaway swivel or monitor tension, Lubricate the cable)
In a loose tube cable, a gel or absorbent tape or powder is normally used _____.
CORRECT ANSWER To prevent water from entering the cable
Which type of cable is best suited for indoor installation when fibers ar to be directly
terminated inside a patch panel with adhesive/polish or prepolished splice connectors?
CORRECT ANSWER tight buffer distribution cable
What type of cable may require installation of a breakout kit (also called a furcation or
fan out kit) for termination? CORRECT ANSWER loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally specified as
______. CORRECT ANSWER 20 times the cable diameter
Cable ties used on fiber optic cables ____. CORRECT ANSWER Can harm cables if
too tight, so they should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____. CORRECT ANSWER low
loss, minimal reflectance and high mechanical strength
To reduce _____ as well as loss, the end of a connector ferrule is polished to a PC
(physical contact) finish. CORRECT ANSWER Reflectance
WITH DETAILED VERIFIED ANSWERS / ALREADY
GRADED A+ // BRAND NEW!
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
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
Optical fiber cable with a orange colored jacket generally indicates the cable contains
_____. CORRECT ANSWER Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? CORRECT ANSWER Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized
50/125 OM3 or OM4 fiber? CORRECT ANSWER Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____.
CORRECT ANSWER Any or all of these as appropriate (Pull form the center to the
ends, Use a breakaway swivel or monitor tension, Lubricate the cable)
In a loose tube cable, a gel or absorbent tape or powder is normally used _____.
CORRECT ANSWER To prevent water from entering the cable
Which type of cable is best suited for indoor installation when fibers ar to be directly
terminated inside a patch panel with adhesive/polish or prepolished splice connectors?
CORRECT ANSWER tight buffer distribution cable
What type of cable may require installation of a breakout kit (also called a furcation or
fan out kit) for termination? CORRECT ANSWER loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally specified as
______. CORRECT ANSWER 20 times the cable diameter
Cable ties used on fiber optic cables ____. CORRECT ANSWER Can harm cables if
too tight, so they should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____. CORRECT ANSWER low
loss, minimal reflectance and high mechanical strength
To reduce _____ as well as loss, the end of a connector ferrule is polished to a PC
(physical contact) finish. CORRECT ANSWER Reflectance
