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NCTI Installer Technician exam 2023 with 100% correct answers
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NCTI Installer Technician exam 2023 with 100% correct answers
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NCTI MT1-MT2According to SCTE- and NCTA- recommended trunk system map symbols, fiber-optic cable is
represented by - correct answer -Double arrows within a small circle on a solid line.
The forward path signal in a traditional tree-and-branch architecture - correct answer -originates at the
headend and is transmitted downstream through coaxial trunk cable and trunk amplifier.
In a HFC network, - correct answer -Processing equipment in the headend converts the forward RF signal
to a light signal.
During aerial plant construction, - correct answer -The strand is tensioned so its sag profile matches that
of the overhead utility power lines.
With underground plant construction, - correct answer -The fiber-optic and coaxial cables are often
places underground with other utility lines to jointly share construction costs.
Standby power supplies - correct answer -continue providing an output voltage even during a utility
power outage by using a back up power source.
Centralized power configurations - correct answer -provide the advantage of increased reliability
through sharing of expensive backup generators and sophisticated monitoring equipment among
different power realms.
When transmitting broadband signals - correct answer -In a two way hybrid fiber/coax (HFC) network,
two or more individual optical fibers are required for each optical node location.
RF trunk amplifiers - correct answer -Have attenuator pads, equalizers, and duplex filters that control
and route the RF signals.
, Verifying plant reliability includes - correct answer -Frequency response sweeping, which is adjusting RF
amplifier circuits to amplify all frequencies in the bandpass spectrum as equally as possible
Which of the following is a requirement in the process for measuring leakage using a dipole antenna, as
required by the FCC? - correct answer -The antenna must be placed 3 meters from the system
components and 3 meters from the ground.
Many cable companies require which type of leaks to be fixed? - correct answer -All types of leaks must
be fixed.
According to the FCC, the leakage log should contain which of the following? - correct answer -The
probable cause of the leakage.
Which of the following FCC required information must a cable system keep on file for two years? -
correct answer -Annual CLI calculations, regular (quarterly) monitoring programs, and a list of all
channels used in the aeronautical bands.
If your leakage detector indicates there is a leak and displays a reading of 14 microvolts per meter
(uV/m) when you are 80 feet from a possible leak source, what is the approximate calculated level of the
leak from 10 feet? - correct answer -112 uV/m.
If a large signal leak is found in the aerial plant, what is a good first step in locating the leak? - correct
answer -Drive around until an absolute peak is found.
Which of the following best describes demand maintenance procedures with regard to signal leakage? -
correct answer -The demand maintenance procedures can improve the CLI measurement results by
identifying and correcting the largest leaks first.
When troubleshooting signal leakage in the drop system, what is indicated if all signs of signal leakage
disappear when the ground block is disconnected and terminated on the side connected to the
customer premises? - correct answer -The backward route from the ground block to the tap can be
eliminated as a source of The backward route from the ground block to the tap can be eliminated as
source of leakage.
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