Lesson II NCTI STUDY GUIDE Questions and Answers 2023
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Ncti
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Ncti
Lesson II NCTI STUDY GUIDE Questions and Answers 2023
Through what equipment does a signal pass in the downstream path in the tree-and-branch architecture?
through trunk coax and amplifiers. Line splitters and directional couplers route some of the signal onto additional trunk runs.
What i...
lesson ii ncti study guide questions and answers 2
through what equipment does a signal pass in the d
how is the rf signal converted and transmitted in
what are the basic components of coax from the
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Lesson II NCTI STUDY GUIDE Questions
and Answers 2023
Through what equipment does a signal pass in the downstream path in the tree-and-
branch architecture? - answer through trunk coax and amplifiers. Line splitters and
directional couplers route some of the signal onto additional trunk runs.
What is the role of amplifiers? - answer boost the power of a signal
How do HFC networks divide the broadband cable operator's coverage area? - answer
divide the broadband cable operator's coverage area into small "serving areas" of 150
to 2,500 customers.
How is the RF signal converted and transmitted in an HFC architecture? - answer at
the headend the light is transmitted by laser over fibers until reaching optical receivers
in the nodes.
On the upstream path, what happens to RF signals at the node? - answer When they
enter the node they are converted into light.
What is the benefit of replacing coax with fiber? - answer to provide a more efficient
upstream path because separate fibers are used.
What are the basic components of coax (from the inside out)? - answer (1) the
center conductor; (2) dielectric; (3) solid aluminum sheath or outer conductor; (4) armor
(if used); (5) jacket (if used); and (6) messenger (if used).
What can the center conductor be made of? - answer solid copper or aluminum with
a copper cladding (or coating).
What is the role of the dielectric? - answer To support the center conductor while
providing insulation between the center conductor and aluminum sheath.
What are the functions of the sheath? - answer to encloses the signals and prevents
ingress and provide structural support, return , and a constant impedance
To operate, what do active devices require? - answer electrical power
How is unity gain maintained in amplifiers? - answer input attenuators and equalizers
adjust the loss so that the gain remains the same and the signal level at the amplifier
output is equal across the network.
What does a trunk station contain? - answer it has attenuation pads, equalizers,
slope and gain controls, and diplex filter and a separate Bridger
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