Maintenance - Study guides, Class notes & Summaries

buffer tubes - A flexible cylindrical structure that houses, compartmentalizes, and protects smaller groups of optical fibers within larger multi-fiber cables. pigtails - A length of optical fiber with a connector at only one end, which may be spliced to a smaller diameter optical fiber for testing or termination. acceptance testing - Length and loss test of fiber-optic cable that is typically performed twice—when the cable is received from the manufacturer and after the cable is i...

NCTI MAINTENANCE I-II QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+

Customer premises - Connected to the network through distribution taps spliced into the coaxial cable. Branches in the architecture - The downstream signal is distributed within nearby neighborhoods using 0.412-inch to 0.625-inch diameter coaxial cable, splitters, and directional couplers. Bridger amplifier - A portion of the downstream signal is boosted before being split and routed to as many as four separate coaxial cables—the branches in the architecture. Trunk amplifiers - ...

In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? - Within each trunk amplifier, a portion of the downstream is fed to a bridger amplifier to boost the signal before being split and routed to the distribution branches. What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? - Node splitting, the subdividing of serving areas into two or more smaller ...

NCTI - 2023 part II question with complete solution rated A+What major sources of television programming are available to broadband cable operators? - correct answer Over-the-air; terrestrial microwave; direct cable feed; satellites; and local origination programming. What are the three main elements of a broadband cable network? - correct answer The headend; the distribution network composed of coaxial cable and/or fiber-optic cable; the drop at the customer premises. In a broadband cable...

NCTI Questions and Answers 2023 Which of the following devices were used to capture TV signals in the early days of television? A) Microwave Antenna. B) Antenna placed on the roof. C) Satellite Dish. D) Dowser Rod. B) Antenna placed on the roof. Why did cable companies implement microwave technology? A) Because the equipment was inexpensive. B) Largely because the microwave signal was not amplified to reach the cable system. C) To obtain a better signal quality than antenna-deliv...

NCTI Final Exam: Progression Tech 2 to 3 New Update 2024/2025. Already Passed!! Field Tech II-III Conventional Explain the importance of grounding in electrical circuits and how it prevents faults and injuries. Proper grounding provides a direct path for excess electrical current to safely discharge into the earth, preventing electrical shocks and equipment damage. Discuss the steps involved in safely locking out and tagging out (LOTO) equipment before performing maintenance. F...

NCTI FINAL EXAM: PROGRESSION FIELD TECH 7-8 TEST EXAM| LATEST UPDATE 2025/2026| Complete Solutions What is the primary function of a field technician in telecommunications? The main role of a field technician in telecommunications is to install, maintain, and troubleshoot communication equipment and systems. Explain the importance of adhering to safety protocols while working on telecommunications equipment. Following safety protocols is crucial to protect technicians from el...

NCTI MT1-MT2 QUESTIONS AND ANSWERS 2023 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. 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 amplifier. In a HFC network, Processing equipment in the headend converts the forward RF signal to a light signal. ...

NCTI Progression Field Tech 3-4 FINAL EXAM: Certified Exam Study *Q&A* (100% Correct) 2025/2026 |VERIFIED| What is the main purpose of a fiber optic cable in telecommunications? signals over extensive distances with minimal signal degradation. Explain the function of a splice tray in fiber optic installations. It carries data as light A splice tray arranges and safeguards fiber splices, ensuring that the fibers are securely held and can be easily accessed for main...