FOA CFOT Certification Exam v11 |
Latest Update With Complete Solutions
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?
CORRECT ANSWERS 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 ANSWERS True
When we say 62.5/125 fiber, what does "62.5" mean? CORRECT ANSWERS core size,
the diameter in microns
When we say 50/125 fiber, what does "125" mean? CORRECT ANSWERS 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 ANSWERS 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 ANSWERS Higher
Which of the following represents a singlemode (smaller core size) fiber size?
CORRECT ANSWERS 9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. CORRECT ANSWERS
greater
Most plastic optical fibers are _____. CORRECT ANSWERS large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. CORRECT ANSWERS 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 ANSWERS Strength members
According to the references, hybrid cables are cables that contain ____. CORRECT
ANSWERS 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 ANSWERS ribbon
According to the references, composite cables refer to cables that contain ____>
CORRECT ANSWERS both optical fibers and copper conductors
Which optical fiber cables must be grounded? CORRECT ANSWERS all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. CORRECT ANSWERS 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 ANSWERS Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? CORRECT ANSWERS Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized
50/125 OM3 or OM4 fiber? CORRECT ANSWERS Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____.
CORRECT ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally specified as
______. CORRECT ANSWERS 20 times the cable diameter
Cable ties used on fiber optic cables ____. CORRECT ANSWERS Can harm cables if
too tight, so they should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____. CORRECT ANSWERS 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 ANSWERS Reflectance
Latest Update With Complete Solutions
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?
CORRECT ANSWERS 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 ANSWERS True
When we say 62.5/125 fiber, what does "62.5" mean? CORRECT ANSWERS core size,
the diameter in microns
When we say 50/125 fiber, what does "125" mean? CORRECT ANSWERS 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 ANSWERS 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 ANSWERS Higher
Which of the following represents a singlemode (smaller core size) fiber size?
CORRECT ANSWERS 9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. CORRECT ANSWERS
greater
Most plastic optical fibers are _____. CORRECT ANSWERS large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. CORRECT ANSWERS 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 ANSWERS Strength members
According to the references, hybrid cables are cables that contain ____. CORRECT
ANSWERS 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 ANSWERS ribbon
According to the references, composite cables refer to cables that contain ____>
CORRECT ANSWERS both optical fibers and copper conductors
Which optical fiber cables must be grounded? CORRECT ANSWERS all cables that
contain metallic elements
Fiber optic cable for use inside a building must _______. CORRECT ANSWERS 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 ANSWERS Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? CORRECT ANSWERS Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized
50/125 OM3 or OM4 fiber? CORRECT ANSWERS Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____.
CORRECT ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS loose tube (loose buffer) cable
When pulling cables, the minimum bend radius under tension is generally specified as
______. CORRECT ANSWERS 20 times the cable diameter
Cable ties used on fiber optic cables ____. CORRECT ANSWERS Can harm cables if
too tight, so they should be hand-tightened.
Fiber optic joints (connectors or splices) should have ____. CORRECT ANSWERS 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 ANSWERS Reflectance
