NCTI Exam I UPDATED ACTUAL Exam
Questions and CORRECT Answers
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the
distribution branches? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? -
CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - Time
domain reflectometer (TDR)
Questions and CORRECT Answers
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the
distribution branches? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? -
CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - Time
domain reflectometer (TDR)
