Progression: Field Tech II - III Conventional Questions and Answers Already Graded A

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Progression: Field Tech II - III Conventional Questions and Answers Already Graded A What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the in... frastructure all at once? ✔✔Changing the infrastructure all at once would cause too many service disruptions. What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? ✔✔An 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 passive optical network (PON)? ✔✔Optical splitters. Which type of star topology used in a passive optical network (PON) places the PON splitters into fiber access terminal (FAT) located deep in the network and closer to the customer premises than the centralized split? ✔✔Distributed star. Which element of a passive optical network (PON) uses a Bragg grating filter? ✔✔Optical line terminal (OLT). Which element of a passive optical network (PON) uses patch panels? ✔✔Optical distribution network (ODN). 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)? ✔✔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? ✔✔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? ✔✔Fiber-optic cable with pre-connectorized ends. Heat shrink tubing is installed over the fusion-splice to strengthen and protect it. When should the heat shrink be installed on the fiber? ✔✔Before stripping the plastic coating from the fiber. Which of the following are statements of true axioms? ✔✔When A = C and B = C, then A = B because both are equal to C, which supports the axiom: Quantities equal to the same quantity are equal to each other. [Show More]

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