In a hfc Samenvattingen, Aantekeningen en Examens

NCTI Cable network overview Quiz with complete solutions | Latest 2023/2024 At what point in the donstream of a hybrid fiber/coax (HFC) network is the RF signal converted into light? --At the headend. What is the basic design of a tree-and-branch network architecture? --It splits trunk and feeder lines into progressively smaller segments. What is isolation? --Isolation is the amount of signal reduction that a passive device has between two output ports. Before Fiber or coax is placed in a...

What is one of the differences between tree-and-branch and hybrid fiber/coax (HFC) DESIGNS? - Bandwidth in the downstream path. In the tree-and-branch design, the cable signal in the downstream path leaves the trunk at the bridge amplifier. There, It makes a transition to the feeder's domain, and the signal splits. What is the maximum number of output ports the split signal can be routed to? - Four. Which of the following statements accurately describes the relationship between coaxial cab...

Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - - Correct answer-recovery and recycling. Refrigerant that is recovered can be returned to: - - Correct answer-the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed...

Fiber Technician I - II Complete Exam Review Answered. What happens if the optical signal exceeds the maximum specified input power into a photodetector? What are the factors that contribute to an optical receiver's sensitivity? What is the benefit of coarse wavelength division multiplexing (CWDM) over dense wavelength division multiplexing (DWDM)? What product based on the Data Over Cable Service Interface Specification (DOCSIS) defines the protocols for Internet protocol (IP) te...

NATE CORE STUDY GUIDE(correct answers)to passWhich of the following is not the product of incomplete combustion: Oxides of nitrogen An oil trap is required at the base of the discharge line of the vertical riser is _____ or above 8 feet A diode allows current to flow in one direction: True 1 Watt = _____ Btu 3.41 Current in a closed circuit is limited by which of the following: resistance An oil separator is located in the _____: Discharge line ___...

Maintenance Tech 2-3 Conventional - NCTI In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - ANSWER-Common Voltage includes +5, +12 and +24 VDC Why do many optical nodes accept two independent power supplies? - ANSWER-For redundant Powering of the node. What is an option available on most optical nodes for connectin to the power supply? - ANSWER-Through a power cable that is connected from the power supply directly to the power port of t...

© 2020 Pearson Education, Hoboken, NJ. All rights reserved. Computer Networking A Top-Down Approach, 8th Edition by James Kurose © 2020 Pearson Education, Hoboken, NJ. All rights reserved. Computer Networking: A Top-Down Approach, 8 th Edition Solutions to Review Questions and Problems Version Date: August 2020 This document contains the solutions to review questions and problems for the 8th edition of Computer Networking: A Top-Down Approach by Jim Kurose and Keith Ross. These solut...

What are three principle characteristics that define an AC waveform? - Answer- The three principle characteristics that define an AC waveform are: (1) frequency; (2) wavelength; and (3) amplitude. What is one of the basic principles of resistance reflected in the familiar practices of grounding and bonding? - Answer- Grounding and bonding practices reflect the basic principle that electricity always follows the path of least resistance. What comprises the impedance of a coaxial cable or a ...

EPA 608 Practice exam type 1 solved correctly The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. Restricted to technicians who are EPA certified and refrigerant recovery A small Pliance is defined as a system that is Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is below 15 pounds. System dependent Y...

In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? 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? Node splitting, the subdividing of serving areas into two or more smaller servin...