- | Page
FOA CFOT CERTIFICATION EXAM
V11 | LATEST UPDATED |
COMPLETE QUESTIONS A ND
ANSWERS | GRADED A+
Question 1: 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
Question 2: 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
Question 3: When we say 62.5/125 fiber, what does
"62.5" mean?
CORRECT ANSWER : core size, the diameter in
microns
- | Page
Question 4: When we say 50/125 fiber, what does "125"
mean?
CORRECT ANSWER : cladding size, the diameter in
microns
Question 5: OM3 and OM4 multimode fiber with a
50/125 micron core are now a popular option in premises cabling systems because they _____.
CORRECT ANSWER : Are "laser optimized" which
gives more distance capability with gigabit networks using laser sources
Question 6: In-multimode fiber, the attenuation (reduction
in optical power) of the fiber is _____ at 850 nm than at 1300 nm.
CORRECT ANSWER : Higher
Question 7: Which of the following represents a
singlemode (smaller core size) fiber size?
- | Page
CORRECT ANSWER : 9/125 micron
Question 8: Singlemode fiber has _____ bandwidth than
multimode fiber.
CORRECT ANSWER : greater
Question 9: Most plastic optical fibers are _____.
CORRECT ANSWER : large core step-index
Question 10: When you strip singlemode or graded index
multimode mode glass fiber, you are removing the ____.
CORRECT ANSWER : Primary buffer coating
Question 11: 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
Question 12: According to the references, hybrid cables
are cables that contain ____.
- | Page
CORRECT ANSWER : Both singelmode and multimode
optical fibers
Question 13: 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
Question 14: According to the references, composite
cables refer to cables that contain ____.
CORRECT ANSWER : both optical fibers and copper
conductors
Question 15: Which optical fiber cables must be
grounded?
CORRECT ANSWER : all cables that contain metallic
elements
Question 16: Fiber optic cable for use inside a building
must _______.
