Practice Test--Cable Technician Exam 1 Questions and Answers 100% Correct
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
Reverse path signals go from the customer premises to the headend. How are reverse path signals sent to the headend - ANSWER-reverse path signals travel to the headend on sub-band RF carriers on the coaxial cable, which are converted into digital light signals to travel on the fiber-optic cable
Which of the following represents 1,000,000,000 cycles per second - ANSWER-One gigahertz
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
Reverse path signals go from the customer premises to the headend. How are reverse path signals sent to the headend - ANSWER-reverse path signals travel to the headend on sub-band RF carriers on the coaxial cable, which are converted into digital light signals to travel on the fiber-optic cable
Which of the following represents 1,000,000,000 cycles per second - ANSWER-One gigahertz
