FOA CFOT Certification Exam v11 | 2025 LATEST UPDATED |
COMPLETE QUESTIONS AND ANSWERS | 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? - (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? -
(answers)True
When we say 62.5/125 fiber, what does "62.5" mean? - (answers)core size, the diameter in
microns
When we say 50/125 fiber, what does "125" mean? - (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 _____. - (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. - (answers)Higher
Which of the following represents a singlemode (smaller core size) fiber size? - (answers)9/125
micron
Singlemode fiber has _____ bandwidth than multimode fiber. - (answers)greater
Most plastic optical fibers are _____. - (answers)large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are removing the
____. - (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. - (answers)Strength members
According to the references, hybrid cables are cables that contain ____. - (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? - (answers)ribbon
According to the references, composite cables refer to cables that contain ____> - (answers)both
optical fibers and copper conductors
Which optical fiber cables must be grounded? - (answers)all cables that contain metallic
elements
Fiber optic cable for use inside a building must _______. - (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 _____. -
(answers)Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode fiber? -
(answers)Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized 50/125
OM3 or OM4 fiber? - (answers)Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____. -
(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)
COMPLETE QUESTIONS AND ANSWERS | 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? - (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? -
(answers)True
When we say 62.5/125 fiber, what does "62.5" mean? - (answers)core size, the diameter in
microns
When we say 50/125 fiber, what does "125" mean? - (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 _____. - (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. - (answers)Higher
Which of the following represents a singlemode (smaller core size) fiber size? - (answers)9/125
micron
Singlemode fiber has _____ bandwidth than multimode fiber. - (answers)greater
Most plastic optical fibers are _____. - (answers)large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are removing the
____. - (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. - (answers)Strength members
According to the references, hybrid cables are cables that contain ____. - (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? - (answers)ribbon
According to the references, composite cables refer to cables that contain ____> - (answers)both
optical fibers and copper conductors
Which optical fiber cables must be grounded? - (answers)all cables that contain metallic
elements
Fiber optic cable for use inside a building must _______. - (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 _____. -
(answers)Multimode fiber
Premises cable jackets are usually color-coded in what color to indicate singlemode fiber? -
(answers)Yellow
Premises cable jackets are usually color-coded in what color to indicate laser-optimized 50/125
OM3 or OM4 fiber? - (answers)Aqua
When pulling long lengths of cable in conduit or innerduct, you may need to ____. -
(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)
