Practice Test--Cable Technician Exam 1 Questions & Answers 100% Correct!!
Practice Test--Cable Technician Exam 1 Questions & Answers 100% Co Which transmission modes are used to send data between secondary hubs and the headend? - ANSWER-microwave, coax, and fiber After the RF signals are combined into one broadband signal and amplified to the proper level, what must happen to the signal before it can be transmitted over fiber-optic cable? - ANSWER-The signal must be converted into light frequencies In a coaxial-only plant, which of the following is true? - ANSWER-Bridger filters are used to block the signal from the feeder system In a hybrid fiber/coax system - ANSWER-The trunk is fiber and the feeder and drop systems are coax The primary function of line extenders is to extend signals farther down the feeder line into the service area. As they do this, what do line extenders add to cable signal? - ANSWER-Noise and distortion Insertion loss - ANSWER-The signal loss between the tap's input port and its output port Which of the following receives power from a power distributing tap? - ANSWER-Network interface unit (NIU) A broadband signal whose voltage varies continually over time is? - ANSWER-An analog signal When a customer makes a phone call using a CBR network, which of the following is true? - ANSWER-the call is carried to the PSTN by the cable system rrect!!
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