FOA CFOT Certification Exam v11 2023/ 100
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? - -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? - -True
-When we say 62.5/125 fiber, what does "62.5" mean? - -core size, the diameter in
microns
-When we say 50/125 fiber, what does "125" mean? - -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 _____. - -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. - -Higher
-Which of the following represents a singlemode (smaller core size) fiber size? - -9/125
micron
-Singlemode fiber has _____ bandwidth than multimode fiber. - -greater
-Most plastic optical fibers are _____. - -large core step-index
-When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - -Primary buffer coating
, -The proper method of pulling optical fiber cables is to attach the pull wire or tape to
the ____ of the cable. - -Strength members
-According to the references, hybrid cables are cables that contain ____. - -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? - -ribbon
-According to the references, composite cables refer to cables that contain ____> - -
both optical fibers and copper conductors
-Which optical fiber cables must be grounded? - -all cables that contain metallic
elements
-Fiber optic cable for use inside a building must _______. - -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
_____. - -Multimode fiber
-Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? - -Yellow
-Premises cable jackets are usually color-coded in what color to indicate laser-
optimized 50/125 OM3 or OM4 fiber? - -Aqua
-When pulling long lengths of cable in conduit or innerduct, you may need to ____. - -
Any or all of these as appropriate (Pull form the center to the ends, Use a breakaway
swivel or monitor tension, Lubricate the cable)
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? - -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? - -True
-When we say 62.5/125 fiber, what does "62.5" mean? - -core size, the diameter in
microns
-When we say 50/125 fiber, what does "125" mean? - -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 _____. - -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. - -Higher
-Which of the following represents a singlemode (smaller core size) fiber size? - -9/125
micron
-Singlemode fiber has _____ bandwidth than multimode fiber. - -greater
-Most plastic optical fibers are _____. - -large core step-index
-When you strip singlemode or graded index multimode mode glass fiber, you are
removing the ____. - -Primary buffer coating
, -The proper method of pulling optical fiber cables is to attach the pull wire or tape to
the ____ of the cable. - -Strength members
-According to the references, hybrid cables are cables that contain ____. - -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? - -ribbon
-According to the references, composite cables refer to cables that contain ____> - -
both optical fibers and copper conductors
-Which optical fiber cables must be grounded? - -all cables that contain metallic
elements
-Fiber optic cable for use inside a building must _______. - -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
_____. - -Multimode fiber
-Premises cable jackets are usually color-coded in what color to indicate singlemode
fiber? - -Yellow
-Premises cable jackets are usually color-coded in what color to indicate laser-
optimized 50/125 OM3 or OM4 fiber? - -Aqua
-When pulling long lengths of cable in conduit or innerduct, you may need to ____. - -
Any or all of these as appropriate (Pull form the center to the ends, Use a breakaway
swivel or monitor tension, Lubricate the cable)
