Summary Progression: Construction Coordinator I - II Exam Answered Correctly.
Progression: Construction Coordinator I - II Exam Answered Correctly. A chain trencher A return path sweep-and-alignment system is used to adjust which of the following? Anomalies, such as echoes and blind spots, can hide cable faults or cause a technician to misinterpret the signature of a time domain reflectometer (TDR) waveform. What causes an echo on a waveform TDR? As the RF signal travels on the coaxial cable, one portion of the signal may be attenuated more than the others. What term is used to describe a situation where cable attenuation is low, causing signal levels to remain greater at the higher frequencies than at the lower frequencies? Broadband cable operators provide customers with HSD High-speed data connections to the Internet via their HFC networks using what standard? Compared to a solid copper center conductor, which property about a copper clad aluminum (CCA) center conductor is correct? Digital return path transmissions - How can a distribution amplifier be identified in the network or on a network design map? - How can a less-experienced technician identify what non-standard symbols on the network design maps represent? How can signal leaks (egress) from hardline coaxial cable occur? How does a time domain reflectometer (TDR) measure the distance to a reflection from a fault or the end of a cable? How far beyond a pin connector should the shrink tubing overlap the coaxial cable? How is a time domain reflectometer (TDR) used during a tap audit or when investigating a suspicious network connection? How much contraction will 1,200 feet of conduit have if the temperature changes from 94 degrees F to 54 degrees F when the rate of contraction is 1 1/2 inches per 100 feet per 20 degrees F change? How much does a power inserter impact the radio frequency (RF) in a network? How much intermodulation distortion degradation is added when two line extender amplifiers with identical distortion characteristics are in cascade? How should a knife be used when preparing hardline coaxial cable for connector attachment? - How should coaxial cable be plowed using a plow machine without a cable reel carrier? - If the attenuation through a 100 ft. span of 0.750 MC2 coaxial cable is 2.5dB at 75 MHz, what will be the approximate attenuation at 300 MHz? If the hardline coaxial cable center conductor is too short after coring the dielectric with a combination coring tool, what should be done? In a centralized server VOD architecture, In a directional coupler, what is the relationship of the insertion loss between the directional coupler input and through ports, and the amount of signal tapped off from the input? - In a network design map, the squares with the number inside are symbols for what devices? - In aerial installations, why do cable manufacturers recommend that expansion loops be formed in hardline coaxial cable? In hardline coaxial cable, what is the most common dielectric material? In regard to providing HSD service, In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? In which areas is the use of a vibratory plow much more economical than trenching? Line extenders can be powered from the network or from a 120- volts alternating current (VAC) source. Which of the following statements about line extender power sources is true? - Monitoring the status of optical nodes The boom on a chain trencher Velocity of propagation (VOP) is the speed of the radio frequency (RF) signals traveling in a coaxial cable relative to the speed of light. What is the range of VOP factors for broadband coaxial cable? What are some of the factors in determining the total length of preassembled cable in a conduit for a trench site? What can be done when installing hardline splitters, directional couplers, power inserters, and distribution taps in tight quarters, such as in a pedestal? What can be said about a straight splice connector? What can cause a resistive type of test to deliver false information? What do all hardline splitter, directional coupler, power inserter, and distribution tap housings have on the back? What do the electrical grid mats that are bonded to a fluid-assisted boring system provide? What does the decibel return loss (dBRL) displayed on most time domain reflectometers (TDR) indicate? What element in a splitter and directional coupler serves, among other functions, to determine to which ports 60/90 alternating current voltage (VAC) is sent? What happens when there is an impedance mismatch between the coaxial cable and the load? - What is a common solution when congestion from modem activity and traffic becomes unacceptable in a HFC Hybrid fiber/coax network? What is a consequence of cutting hardline coaxial cable with conventional side cutters? - What is a metallic time domain reflectometer (MTDR)? What is different about preparing QR hardline coaxial cable for connector installation compared to all other types? - What is MPEG? What is on the interior side of the faceplate in a hardline splitter, directional coupler, power inserter, and distribution tap? What is required for checking the physical network integrity when maintaining the coaxial cable network? - What is spliced into the hardline coaxial cable to combine the AC power with the transported RF signal in a HFC Hybrid fiber/coax network? - What is the attenuation through 1,600-feet of 0.750 cable at 600 MHz and 120° F, when at 68° F and 600 MHz the cable attenuation rate is 1.31 decibels (dB)/100 feet? (Be sure to factor in the higher temperature.) - What is the coaxial cable velocity of propagation (VoP)? - What is the proper method for removing the coaxial cable from its reel for a direct burial operation? What is the purpose of a portable conduit fishing system? - What is the return loss in coaxial cable? What is the RF distribution tap value indicated on the tap face plate by a sticker or number stamped into the housing? What is the typical gain of a line extender in decibels (dB)? - What may be required to remove a very large rock from the ground during trenching? - What mechanisms do pit dry boring machines utilize to bore through soil and underneath obstacles? - What must all fluid assisted boring machine operators and crew members do in case of an inadvertent utility cut or other unforeseen accident? - What must be done when measuring the port-to-port isolation between the output ports of a splitter or directional coupler? - What presents the biggest electrical shock hazard when operating a time domain reflectometer (TDR) in the network? - What product based on the DOCSIS defines the protocols for IP telephony over HFC? - What should be done before measuring any distance with a measuring wheel? - What should be used in place of short coaxial cable jumpers to provide a compact and solid mechanical and electrical connection between the equipment housings? - What should be worn when cutting and preparing hardline coaxial cable for connector attachment? - What should you be looking for when analyzing the network design maps to troubleshoot a problem? - What technologies are defined in DOCSIS 4.0 to help sustain the HFCHybrid fiber/coax network infrastructure for several more years? - 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? - What type of adapter is used for permanent or temporary jumper installation in place of damaged hardline coaxial cable or equipment hookup? - What type of adapter provides a clean transition from the hardline coaxial cable to an F-connector when testing hardline coaxial cable with a time domain reflectometer (TDR)? - What type of map can be useful for tracking the progress of a network upgrade, or the expanse of a network condition, such as an outage? - When aligning amplifiers in the return path, what must be achieved and maintained from the customer premises to the headend, or node? - When backfilling a boring pit or trench, what should be done to protect the buried conduit or cable in conduit (CIC)? When backfilling the trench, - When can a single straight splice connector be used to repair a crack in aerial hardline coaxial cable? - When digging the trench, - When directly burying coaxial cable, When looking at a design map, what do the small circles with an X connected with a solid line represent? When preparing to plow conduit/cable in conduit (CIC), how long should the starter trench be? When setting up the forward amplifier of a line extender, why must the manual gain control be at a mid-range position at the desired operating level? - When splicing equipment into underground hardline coaxial cable, if the construction crew forgets to identify the direction of the cable, what can be done to find which cable attaches to the input and output side of the equipment? - When studying a network map for an upcoming splicing project, how can you identify the high-output port of an unbalanced 3-way splitter ? - When using a cable locator, why is it unnecessary to disconnect the cable from any connections? - When using a fluid-assisted boring machine, why is the drilling fluid added when pulling the drill string back through the hole? - When using a single-purpose coring tool, what is done before the coring tool can be used to cut and remove the dielectric? - When using a surface dry boring machine, what is the preferred forward speed of the machine? Which characterizes a feed-through distribution tap? - Which hardline coaxial cable splicing project would be in the repair and/or maintenance category? - Which of the following describes a power inserter? - Which of the following is true about optical nodes? - Which of the following is true about the SONET standard? Which of the following statements about local ad insertion is true? Which type of vibratory plow is an attachment to a tractor or trencher and requires a ground person to manually guide the conduit into the feed chute as the plow cuts through the ground? Why are many network design maps drawn on a scale in which 1 inch represents 100 feet, a ratio of 1:1,200? Why are pin-type hardline connectors the preferred type of connector for attaching hardline coaxial cable to equipment housings in today's networks? - Why is it a good practice to measure the downstream input signal and compare the measurements to the calculated levels shown on the network maps before attempting to set up the forward amplifier section of a line extender? - Why is it necessary that feed-through distribution taps pass alternating current (AC)? - Why is it unnecessary to measure the unregulated direct current (DC) voltage on a line extender that has a switching mode power supply (SMPS)? - Why was the impedance for the broadband cable industry standardized at 75 ohms (Ω)? - Why would a technician be asked to measure the signal levels on the highest and lowest downstream channels from a specific location when performing a cost payback analysis? -
Geschreven voor
- Instelling
- Progression: Construction Coordinator I - II
- Vak
- Progression: Construction Coordinator I - II
Documentinformatie
- Geüpload op
- 5 maart 2023
- Aantal pagina's
- 10
- Geschreven in
- 2022/2023
- Type
- Samenvatting
Onderwerpen
-
progression construction coordinator i ii exam
-
progression construction coordinator i ii exam 2023
-
monitoring the status of optical nodes
-
digital return path transmissions
-
br
