NCTI Field Tech 2 to 3 Questions with Correct Answer 2023/2024 What is one reason why broadband cable operators install fiber optic cables in stages instead of changing the infrastructure all at once - Correct Answer Changing the infrastructure all at once would cause too many service disruptions What is the difference between FTTN and FTTC - Correct Answer FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the customer premises Which of these components is used in a PON(Passive Optical Network) - Correct Answer Optical Splitters Which type of Star topology used in a PON(Passive Optical Network) places the PON splitters into FATS(Fiber Access Terminals) located deep in the network and closer to the customer premises than the centralized split - Correct Answer Distributed Star Which element of a PON(Passive Optical Network) uses a Bragg grating filter - Correct Answer OLT(Optical Line Terminal) Which element of a PON(Passive Optical Network) uses Patch Panels - Correct Answer ODN(Optical Distribution Network) What is it about Radio Frequency over Glass(RFoG) that made broadband cable operators envision using it to make a seamless transition from the legacy hybrid/fiber coax(HFC) architecture over to a gigabit- capable passive optical network (GPON) or Ethernet passive optical network (EPON) - Correct Answer RFoG can operate in parallel with GPON or EPON, which eliminates the need for any downtime during the transition How are optical splitters used in the forward path - Correct Answer In the forward path, optical splitters are used as passive branching devices that divide an optical signal across multiple output fibers Which of the following describes a fiber pigtail - Correct Answer Fiber-optic cable with pre- connectorized ends 1 / 3
Heat Shrink tubing is installed over the fusion-splice to strengthen and protect it. When should the heat shrink be installed on the fiber - Correct Answer Before stripping the plastic coating from the fiber Which of the following is a method for controlling expectations - Correct Answer focus on the bigger picture rather than smaller tasks Which of the following best describes stereotyped thinking - Correct Answer Presuming that all members of a group have certain characteristics The attribute of being "active" as a critical thinker means - Correct Answer You observe and take notes relevant to the issue What kind of reasoning is described as applying a general statement that you know to be true to a new situation - Correct Answer Deductive It is essential to pay attention to warning signs of stress overload. Poor attitude is one of the behaviors that may indicate that you are overstressed. What are the symptoms of poor attitude behavior - Correct Answer A significant change in attitude with a noticeable movement toward negative, hostile, cynical, or paranoid thoughts You are at a customer's house and you are asking the customer whether the problem is intermittent or constant. Which step are you using from the six-step troubleshooting process - Correct Answer Identifying the problem Why should you take the time to take notes and accurately record data at each job location - Correct Answer Notes and recorded data are tools that can help you accurately remember events at a site that can help you determine a plan of action or evaluate the decisions you made You are at a customer's home and you believe you have solved the problem. When you check to be sure there are no new problems, which step are you using - Correct Answer Verifying the Solution To break the habit of a negative self-talk cycle - Correct Answer Tell yourself "not now" and move onto a positive thought whenever negative thoughts occur 2 / 3
By taking control of the expectations you have you are - Correct Answer more likely to improve your motivation and be a better problem solver Which of the following characterizes the successful troubleshooter - Correct Answer Someone with an inquisitive and relentless desire to solve and fix problems What must a technician be aware of when analyzing a Digital TV(DTV) problem - Correct Answer There is frequently more than one contributor to a specific DTV service problem After a digital TV(DTV) service problem has been analyzed and possible causes considered, what is accomplished by isolating the various network elements - Correct Answer It narrows the scope of likely problem sources During which step of the six-step troubleshooting process for a digital TV(DTV) service problem are QAM(Quadrature amplitude modulation) channel measurements typically taken - Correct Answer Diagnosing symptoms When replacing a splitter to resolve a digital TV(DTV) service problem, what does confirming the splitter output levels before attaching the output connectors do? - Correct Answer Confirmation reinforces the tech's confidence that the problem will be resolved by replacing the splitter Which of the following DTV(digital TV) trouble calls could have been avoided with customer education about the product - Correct Answer the digital set-top box(STB) overheats When troubleshooting a digital TV(DTV) authorization issue, what can be verified using the set-top box(STB) diagnostic page - Correct Answer STB reception of authorization message data Which type of set-top box (STB) operates more like Data Over Cable Service Interface Specification(DOCSIS) cable modems with return channels on the same frequencies used for cable modems - Correct Answer STB with DOCSIS Set-top Gateway(DSG) client software and embedded DOCSIS modems Because the spectral density of a quadrature amplitude modulation(QAM) channel is much higher than that of an analog TV channel, what is done to ensure equal power in all channels in a network with
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