Progression: Maintenance Tech I - II Conventional Advanced Test 2023.

Progression: Maintenance Tech I - II Conventional Advanced Test 2023. In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? - ANSWER Within each trunk amplifier, 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? - 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? - 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? - 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? - 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? - 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? - 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? - ANSWER Time domain reflectometer (TDR) What should you be looking for when analyzing the network design maps to troubleshoot a problem? - ANSWER 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? - ANSWER Being observant and performing some minor tasks while engaged in regularly scheduled activities