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NCTI MT1-MT2 Exam with complete
solutions latest version
According 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
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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.
Which typical over-the-air signal sources can cause a false alarm with a signal
leakage detector? - CORRECT ANSWER-Typical sources include aircraft
communication signals and ham, mobile, and government radio broadcasts.
When adjusting or selecting the elements of a dipole antenna for measuring
signal leakage, what is the approximate length of each element relative to the
wavelength of the signal being measured? - CORRECT ANSWER-One-quarter
wavelength.
Which of the following problem(s) are caused by egress? - CORRECT ANSWER-
Interference with aeronautieal navigation
and communication, amateur radio public service, and cellular communications.
NCTI MT1-MT2 Exam with complete
solutions latest version
According 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
, www.stuvia.com/doc
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.
Which typical over-the-air signal sources can cause a false alarm with a signal
leakage detector? - CORRECT ANSWER-Typical sources include aircraft
communication signals and ham, mobile, and government radio broadcasts.
When adjusting or selecting the elements of a dipole antenna for measuring
signal leakage, what is the approximate length of each element relative to the
wavelength of the signal being measured? - CORRECT ANSWER-One-quarter
wavelength.
Which of the following problem(s) are caused by egress? - CORRECT ANSWER-
Interference with aeronautieal navigation
and communication, amateur radio public service, and cellular communications.
