FOA CFOT Exam | Verified Q&A’s Latest
Update
The __________ protects the fiber from harm?
A- Primary buffer coating
B- Aramid fiber strength members
C- Jacket
D- ALL OF THE ABOVE
Primary buffer coating, Aramid fibers strength members, jacket
D- ALL OF THE ABOVE
Which fiber optic test instrument uses backscatter light for measurements?
A- OLTS
B- OTDR
C- VFL
D- Tracer
OTDR
The wavelength of light used for most fiber optic systems is in the _________ and _________
to the human eye?
A- ultraviolet, invisible
B- solar, visible
C- infrared, invisible
Infrared, invisible
The biggest advantages of optical fiber is the fact it is the most cost effective means of
transporting information.
True or False
True
Telephone networks have been converted to fiber, including long distance and metropolitan
networks, but fiber to the home (FTTH) is not yet feasible.
Ture or False
False
In an industrial environment, fiber is most often used to _____________?
A- Prevent electromagnetic interference
,B- Provide ultra-high speed connections to machines
C- Withstand high temperatures
D- Tolerate physical abuse
Prevent electromagnetic interference
Which of the following are not necessary in a centralized fiber optic cabling architecture?
A- Repeaters or hubs
B- Telecom Closets
C- Wall outlets
D- NIC Cards
Telecom closets
Copper networks can be converted to fiber optics using ?
A- Fiber hubs
B- Media converters
C- Patch panels
D- Rewiring
Media converters
The bandwidth and distance capability of optical fiber means that?
A-Fewer cables are needed
B-Fewer repeaters are needed
C-Less power is consumed by network
D-Less maintenance is required
Fewer cables are needed
Fewer repeaters are needed
Less power is consumed by network
Less maintenance is required
Which of the following communications systems typically use fiber optic backbone?
A-Telephones
B-CATV
C-Internet
D-Cell phones
Telephones
CATV
Internet
Cell phones
, Cable TV uses both analog and digital signals.
True or False
True
Single mode fiber has a ________ light carrying core than multimode fiber.
A- Smaller
B- Larger
C- Same size
Smaller
What is the core size of singlemode fiber?
A- 5 nm
B- 9 microns
C- 50 microns
D- 63.5 microns
9 microns
Singlemode fiber has __________ bandwidth than multimode fiber?
A- More
B- Less
C- The same
More
What wavelengths are appropriate for use with multimode fiber?
A- 650- 850
B- 850- 1300
C- 850- 1310
D- 1310- 1550
850 & 1300nm
The diameter of the core in OM2 and OM3 multimode fiber is how large?
A- 50 microns
B- 62.5 microns
C- 62.5 nm
D- 9 nm
50 microns
Update
The __________ protects the fiber from harm?
A- Primary buffer coating
B- Aramid fiber strength members
C- Jacket
D- ALL OF THE ABOVE
Primary buffer coating, Aramid fibers strength members, jacket
D- ALL OF THE ABOVE
Which fiber optic test instrument uses backscatter light for measurements?
A- OLTS
B- OTDR
C- VFL
D- Tracer
OTDR
The wavelength of light used for most fiber optic systems is in the _________ and _________
to the human eye?
A- ultraviolet, invisible
B- solar, visible
C- infrared, invisible
Infrared, invisible
The biggest advantages of optical fiber is the fact it is the most cost effective means of
transporting information.
True or False
True
Telephone networks have been converted to fiber, including long distance and metropolitan
networks, but fiber to the home (FTTH) is not yet feasible.
Ture or False
False
In an industrial environment, fiber is most often used to _____________?
A- Prevent electromagnetic interference
,B- Provide ultra-high speed connections to machines
C- Withstand high temperatures
D- Tolerate physical abuse
Prevent electromagnetic interference
Which of the following are not necessary in a centralized fiber optic cabling architecture?
A- Repeaters or hubs
B- Telecom Closets
C- Wall outlets
D- NIC Cards
Telecom closets
Copper networks can be converted to fiber optics using ?
A- Fiber hubs
B- Media converters
C- Patch panels
D- Rewiring
Media converters
The bandwidth and distance capability of optical fiber means that?
A-Fewer cables are needed
B-Fewer repeaters are needed
C-Less power is consumed by network
D-Less maintenance is required
Fewer cables are needed
Fewer repeaters are needed
Less power is consumed by network
Less maintenance is required
Which of the following communications systems typically use fiber optic backbone?
A-Telephones
B-CATV
C-Internet
D-Cell phones
Telephones
CATV
Internet
Cell phones
, Cable TV uses both analog and digital signals.
True or False
True
Single mode fiber has a ________ light carrying core than multimode fiber.
A- Smaller
B- Larger
C- Same size
Smaller
What is the core size of singlemode fiber?
A- 5 nm
B- 9 microns
C- 50 microns
D- 63.5 microns
9 microns
Singlemode fiber has __________ bandwidth than multimode fiber?
A- More
B- Less
C- The same
More
What wavelengths are appropriate for use with multimode fiber?
A- 650- 850
B- 850- 1300
C- 850- 1310
D- 1310- 1550
850 & 1300nm
The diameter of the core in OM2 and OM3 multimode fiber is how large?
A- 50 microns
B- 62.5 microns
C- 62.5 nm
D- 9 nm
50 microns
