NCTI Charter Communications Fiber -
Lesson 1 Exam Questions & Answers3
What are some potential problems in underground cable installations? - ANSWERS-Potential
problems in underground installations include dig-ups, rodents, ice, improper backfilling,
washouts, and landslides.
What equipment should the well-equipped technician have to troubleshoot a fiber-optic system
effectively and efficiently? - ANSWERS-The well-equipped technician should have a fiber-optic
cleaning kit, an optical inspection microscope, an optical power meter, a stabilized light source
or an optical loss test set, a visible laser, and an optical time domain reflectometer (OTDR) to
effectively and efficiently troubleshoot a fiber-optic system and identify and locate the trouble.
What test equipment would the technician use to identify and locate a localized fiber
attenuation problem? - ANSWERS-An optical power meter, OTDR, or visible laser could be used
to identify and locate a localized fiber attenuation problem.
What is unique about FTTx testing using the optical power meter? - ANSWERS-Wavelength-
isolating optical power meters are designed to be operated in bi-directional FTTx applications to
measure both upstream and downstream ITU-, IEEE-, and SCTE-specified wavelengths.
What does the hybrid fiber/coax (HFC) network architecture offer broadband cable operators? -
ANSWERS-HFC network architectures have been developed to enable broadband cable
operators to make a gradual, or staged, transition to an all fiber-optic cable infrastructure.
Which fiber-to-the-x topology has amplifiers in the coaxial cable portion of the network? -
ANSWERS-Additional RF amplifiers may be in the coaxial cable portion of the fiber-to-the-node
(FTTN) topology to maintain proper amplitude levels of the RF signal throughout the serving
area.
Lesson 1 Exam Questions & Answers3
What are some potential problems in underground cable installations? - ANSWERS-Potential
problems in underground installations include dig-ups, rodents, ice, improper backfilling,
washouts, and landslides.
What equipment should the well-equipped technician have to troubleshoot a fiber-optic system
effectively and efficiently? - ANSWERS-The well-equipped technician should have a fiber-optic
cleaning kit, an optical inspection microscope, an optical power meter, a stabilized light source
or an optical loss test set, a visible laser, and an optical time domain reflectometer (OTDR) to
effectively and efficiently troubleshoot a fiber-optic system and identify and locate the trouble.
What test equipment would the technician use to identify and locate a localized fiber
attenuation problem? - ANSWERS-An optical power meter, OTDR, or visible laser could be used
to identify and locate a localized fiber attenuation problem.
What is unique about FTTx testing using the optical power meter? - ANSWERS-Wavelength-
isolating optical power meters are designed to be operated in bi-directional FTTx applications to
measure both upstream and downstream ITU-, IEEE-, and SCTE-specified wavelengths.
What does the hybrid fiber/coax (HFC) network architecture offer broadband cable operators? -
ANSWERS-HFC network architectures have been developed to enable broadband cable
operators to make a gradual, or staged, transition to an all fiber-optic cable infrastructure.
Which fiber-to-the-x topology has amplifiers in the coaxial cable portion of the network? -
ANSWERS-Additional RF amplifiers may be in the coaxial cable portion of the fiber-to-the-node
(FTTN) topology to maintain proper amplitude levels of the RF signal throughout the serving
area.
