NCTI 2020 Progression: Maintenance Tech I - II Conventional Questions And Answers

NCTI 2020 Progression: Maintenance Tech I - II Conventional Questions And Answers
1. According to SCTE- and NCTA-recommended trunk system map symbols,
fiber-optic cable is represented by: Double arrows within a small circle on a solid
line.
2. The forward path signal in a traditional tree-and-branch architecture: Originates at the headend and is transmitted downstream through coaxial trunk cable
and trunk amplifiers.
3. In an HFC network,: Processing equipment in the headend converts the forward
RF signal to a light signal.
4. During aerial plant construction,: The strand is tensioned so its sag profile
matches that of the overhead utility power lines.
5. With underground plant construction,: The fiber-optic and coaxial cables are
often placed underground with other utility lines to jointly share construction costs.
6. Standby power supplies: Continue providing an output voltage even during a
utility power outage by using a backup power source.
7. Centralized power configurations: Provide the advantage of increased reliability through sharing of expensive backup generators and sophisticated monitoring
equipment among different power realms.
8. When transmitting broadband signals: In a two-way hybrid fiber/coax (HFC)
network, two or more individual optical fibers are required for each optical node
location.
9. RF trunk amplifiers: Have attenuator pads, equalizers, and diplex filters that
control and route the RF signals.
10. Verifying plant reliability includes: Frequency response sweeping, which is adjusting RF amplifier circuits to amplify all frequencies in the bandpass spectrum
as equally as possible
11. Which of the following is a requirement in the process for measuring
leakage using a dipole antenna, as required by the FCC?: The antenna must
be placed 3 meters from the system components and 3 meters from the ground.
12. Many cable companies require which type of leaks to be fixed?: All types
of leaks must be fixed.
13. According to the FCC, the leakage log should contain which of the following?: The probable cause of the leakage.
14. Which of the following FCC required information must a cable system
keep on file for two years?: Annual CLI calculations, regular (quarterly) monitoring
programs, and a list of all channels used in the aeronautical bands.
15. 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?: 112
uV/m.

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