FOA CFOT Certification Exam v11
If you need to permanently join two fibers together with the lowest loss and least
amount of reflectance, which of the following should you choose? - CORRECT
ANSWER-fusion splice
Mass fusion splicing is normally used on what style of cable? - CORRECT ANSWER-
ribbon cable
Prior to cable plant acceptance or system turn-up, a(n) _____ is used to measure the
cable plant insertion loss to ensure it is within the loss budget. - CORRECT ANSWER-
Light source and power meter (LSPM or OLTS)
For insertion loss testing, the fiber optic test source must match the _____ of the
transmission system or the standards covering the cable plant. - CORRECT ANSWER-
both fiber type and wavelenght
According to the text, it is recommended that reference test cables be chosen for their
__________> - CORRECT ANSWER-low loss
Which of the following parameters cannot be measured by OTDRs (optical time domain
reflectometers) in fiber optic networks. - CORRECT ANSWER-Transmitter and receiver
power
For safety, a fiber optic technician or installer should always wear ______ when working
with optical fiber. - CORRECT ANSWER-Eye protection
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
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
If you need to permanently join two fibers together with the lowest loss and least
amount of reflectance, which of the following should you choose? - CORRECT
ANSWER-fusion splice
Mass fusion splicing is normally used on what style of cable? - CORRECT ANSWER-
ribbon cable
Prior to cable plant acceptance or system turn-up, a(n) _____ is used to measure the
cable plant insertion loss to ensure it is within the loss budget. - CORRECT ANSWER-
Light source and power meter (LSPM or OLTS)
For insertion loss testing, the fiber optic test source must match the _____ of the
transmission system or the standards covering the cable plant. - CORRECT ANSWER-
both fiber type and wavelenght
According to the text, it is recommended that reference test cables be chosen for their
__________> - CORRECT ANSWER-low loss
Which of the following parameters cannot be measured by OTDRs (optical time domain
reflectometers) in fiber optic networks. - CORRECT ANSWER-Transmitter and receiver
power
For safety, a fiber optic technician or installer should always wear ______ when working
with optical fiber. - CORRECT ANSWER-Eye protection
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
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
