NCTI Charter Communications Fiber - Lesson 1 Questions and Answers 2023
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Ncti
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Ncti
NCTI Charter Communications Fiber - Lesson 1 Questions and Answers 2023
What does the hybrid fiber/coax (HFC) network architecture offer broadband cable operators?
HFC network architectures have been developed to enable broadband cable operators to make a gradual, or staged, transition to an all ...
which fiber to the x topology has amplifiers in th
what are the three categories of fiber optic ca
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NCTI Charter Communications Fiber -
Lesson 1 Questions and Answers 2023
What does the hybrid fiber/coax (HFC) network architecture offer broadband cable
operators? - answer HFC network architectures have been developed to enable
broadband cable operators to make a gradual, or staged, transition to an all fiber-optic
cable infrastructure.
Which fiber-to-the-x topology has amplifiers in the coaxial cable portion of the network?
- answer Additional RF amplifiers may be in the coaxial cable portion of the fiber-to-
the-node (FTTN) topology to maintain proper amplitude levels of the RF signal
throughout the serving area.
What topology is used in passive optical network (PON) architectures? - answer
Passive optical network (PON) architectures use fiber-to-the-premises (FTTP)
topologies to make point-to-multipoint (P2MP) connections between the broadband
cable headend and the customer premises.
What are the three categories of fiber-optic cable in a PON? - answer The fiber-optic
cable in a PON is placed in one of three categories, trunk, branch, and drop, to identify
the cable's location in the network.
What variations of the star topology are used in PONs? - answer Centralized split,
distributed star, and home-run are variations of the star topology used in PONs.
What does the radio frequency over glass (RFoG) architecture provide as envisioned by
broadband cable operators? - answer RFoG was envisioned to provide operators
with the time to make a seamless transition from the legacy hybrid fiber/coax (HFC)
architecture over to gigabit PON (GPON) or Ethernet PON (EPON).
What are the three primary elements of a PON? - answer Using terminology from the
telephone industry, the main elements of a PON are the optical line terminal (OLT), the
optical distribution network (ODN), and the optical network unit (ONU).
In FTTx networks, what is required to power ONTs at the customer premises? - answer
AC power must be provided at the customer premises in the case of RFoG installations
to power the ONT.
What are optical splitters? - answer Optical splitters are passive branching devices
that divide an optical signal across a number of output ports in the forward direction,
and combine multiple signals onto a common optical fiber in the return direction.
Why can FTTx applications be more susceptible to the adverse effects of macro- and
microbends bends than typical transmission applications? - answer FTTx standards
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