NCTI Exam I Questions with Correct Answers Latest Update 2025/2026
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the
distribution branches? - Answers 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? - Answers Node splitting, the subdividing of
serving areas into two or more smaller serving areas.
What technologies are defined in DOCSIS 4.0 to help sustain the hybrid fiber/coax (HFC)
network infrastructure for several more years? - Answers Full Duplex DOCSIS (FDX) and
Extended Spectrum DOCSIS (ESD).
How can a less-experienced technician identify what non-standard symbols on the network
design maps represent? - Answers The legend at the bottom of the network design map that
defines the map symbols, cable types, and amplifier data.
What is the RF distribution tap value indicated on the tap face plate by a sticker or number
stamped into the housing? - Answers The signal loss between the tap downstream input port
and the tap ports
How can a distribution amplifier be identified in the network or on a network design map? -
Answers The distribution amplifier has multiple downstream outputs.
What is spliced into the hardline coaxial cable to combine the AC power with the transported RF
signal in a hybrid fiber/coax (HFC) network? - Answers A power inserter.
What test instrument sends out a test signal and displays any reflections caused by impedance
mismatches in the cable that are characteristic of cable faults? - Answers Time domain
reflectometer (TDR)
What should you be looking for when analyzing the network design maps to troubleshoot a
problem? - Answers The device common to those customers affected before traveling to make
signal status checks.
What is required for checking the physical network integrity when maintaining the coaxial cable
network? - Answers Being observant and performing some minor tasks while engaged in
regularly scheduled activities.
How is the distribution amplifier used in a fiber node? - Answers -Boosts the amplitude of the
downstream RF signal for delivery throughout each neighborhood
-Combines/amplifies the upstream RF channels returning from the neighborhoods.
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the
distribution branches? - Answers 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? - Answers Node splitting, the subdividing of
serving areas into two or more smaller serving areas.
What technologies are defined in DOCSIS 4.0 to help sustain the hybrid fiber/coax (HFC)
network infrastructure for several more years? - Answers Full Duplex DOCSIS (FDX) and
Extended Spectrum DOCSIS (ESD).
How can a less-experienced technician identify what non-standard symbols on the network
design maps represent? - Answers The legend at the bottom of the network design map that
defines the map symbols, cable types, and amplifier data.
What is the RF distribution tap value indicated on the tap face plate by a sticker or number
stamped into the housing? - Answers The signal loss between the tap downstream input port
and the tap ports
How can a distribution amplifier be identified in the network or on a network design map? -
Answers The distribution amplifier has multiple downstream outputs.
What is spliced into the hardline coaxial cable to combine the AC power with the transported RF
signal in a hybrid fiber/coax (HFC) network? - Answers A power inserter.
What test instrument sends out a test signal and displays any reflections caused by impedance
mismatches in the cable that are characteristic of cable faults? - Answers Time domain
reflectometer (TDR)
What should you be looking for when analyzing the network design maps to troubleshoot a
problem? - Answers The device common to those customers affected before traveling to make
signal status checks.
What is required for checking the physical network integrity when maintaining the coaxial cable
network? - Answers Being observant and performing some minor tasks while engaged in
regularly scheduled activities.
How is the distribution amplifier used in a fiber node? - Answers -Boosts the amplitude of the
downstream RF signal for delivery throughout each neighborhood
-Combines/amplifies the upstream RF channels returning from the neighborhoods.
