FOA CFOT Certification Exam v11
2025/2026 Exam Questions and Verified
Answers | Already 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? -
🧠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? - 🧠ANSWER ✔✔True
When we say 62.5/125 fiber, what does "62.5" mean? - 🧠ANSWER ✔✔core size,
the diameter in microns
When we say 50/125 fiber, what does "125" mean? - 🧠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 _____. - 🧠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. - 🧠ANSWER ✔✔Higher
Which of the following represents a singlemode (smaller core size) fiber size? -
🧠ANSWER ✔✔9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. - 🧠ANSWER
✔✔greater
Most plastic optical fibers are _____. - 🧠ANSWER ✔✔large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - 🧠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. - 🧠ANSWER ✔✔Strength members
According to the references, hybrid cables are cables that contain ____. -
🧠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? - 🧠ANSWER ✔✔ribbon
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
2025/2026 Exam Questions and Verified
Answers | Already 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? -
🧠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? - 🧠ANSWER ✔✔True
When we say 62.5/125 fiber, what does "62.5" mean? - 🧠ANSWER ✔✔core size,
the diameter in microns
When we say 50/125 fiber, what does "125" mean? - 🧠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 _____. - 🧠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. - 🧠ANSWER ✔✔Higher
Which of the following represents a singlemode (smaller core size) fiber size? -
🧠ANSWER ✔✔9/125 micron
Singlemode fiber has _____ bandwidth than multimode fiber. - 🧠ANSWER
✔✔greater
Most plastic optical fibers are _____. - 🧠ANSWER ✔✔large core step-index
When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - 🧠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. - 🧠ANSWER ✔✔Strength members
According to the references, hybrid cables are cables that contain ____. -
🧠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? - 🧠ANSWER ✔✔ribbon
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
