NCTI FIELD TECH 2 TO 3 PROGRESSION FINAL EXAM questions with answers

NCTI FIELD TECH 2 TO 3 PROGRESSION
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FINAL EXAM questions with answers |\ |\ |\ |\




What uses the 2.4-GHz band and runs at 54 Mbps? - CORRECT
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ANSWERS ✔✔802.11g |\




What is one reason why broadband cable operators install fiber-
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optic cable in stages instead of changing the infrastructure all at
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once? - CORRECT ANSWERS ✔✔Changing the infrastructure all at
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once would cause too many service disruptions.
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What is the difference between the fiber-to-the-node (FTTN) and
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fiber-to-the-curb (FTTC) topologies? - CORRECT ANSWERS ✔✔An |\ |\ |\ |\ |\ |\ |\


FTTC is allowed a smaller number of RF amplifiers between the
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optical fiber and the customer premises.
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Which of these components is used in a passive optical network
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(PON)? - CORRECT ANSWERS ✔✔Optical splitters.
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Which type of star topology used in a passive optical network
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(PON) places the PON splitters into fiber access terminal (FAT)
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located deep in the network and closer to the customer premises
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than the centralized split? - CORRECT ANSWERS ✔✔Distributed
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star.

,Which element of a passive optical network (PON) uses a Bragg
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grating filter? - CORRECT ANSWERS ✔✔Optical line terminal
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(OLT).


Which element of a passive optical network (PON) uses patch
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panels? - CORRECT ANSWERS ✔✔Optical distribution network
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(ODN).


What is it about radio frequency over glass (RFoG) that made
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broadband cable operators envision using it to make a seamless
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transition from the legacy hybrid fiber/coax (HFC) architecture
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over to a gigabit-capable passive optical network (GPON) or
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Ethernet passive optical network (EPON)? - CORRECT ANSWERS
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✔✔RFoG can operate in parallel with GPON or EPON, which
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eliminates the need for any downtime during the transition.
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How are optical splitters used in the forward path? - CORRECT
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ANSWERS ✔✔In the forward path, optical splitters are used as
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passive branching devices that divide an optical signal across
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multiple output fibers. |\ |\




Which of the following describes a fiber pigtail? - CORRECT
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ANSWERS ✔✔Fiber-optic cable with pre-connectorized ends.
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Heat shrink tubing is installed over the fusion-splice to
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strengthen and protect it. When should the heat shrink be
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installed on the fiber? - CORRECT ANSWERS ✔✔Before stripping
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the plastic coating from the fiber.
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,Which of the following are statements of true axioms? - CORRECT
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ANSWERS ✔✔When A = C and B = C, then A = B because both
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are equal to C, which supports the axiom: Quantities equal to the
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same quantity are equal to each other.
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Simplify and solve the equation: If E = IR then I = ? - CORRECT
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ANSWERS ✔✔E/R |\




The square of 7 = - CORRECT ANSWERS ✔✔49
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The square root of 81 = - CORRECT ANSWERS ✔✔9
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0.00004 = ______ x 10 to the power of ______. - CORRECT
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ANSWERS ✔✔4, -5 |\ |\




(75 x 10 to the power of 3) + (25 x 10 to the power of 4) = -
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CORRECT ANSWERS ✔✔32.5 x 10 to the power of 4 |\ |\ |\ |\ |\ |\ |\ |\ |\




10 to the power of -3 has a metric prefix of ______. - CORRECT
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ANSWERS ✔✔Milli |\




(480 x 10 to the power of -5) divided by (60 x 10 to the power of
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-3) = - CORRECT ANSWERS ✔✔8 x 10 to the power of -2
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(250 x 10 to the power of -6) - (7 x 10 to the power of -5) = -
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CORRECT ANSWERS ✔✔180 x 10 to the power of -6 |\ |\ |\ |\ |\ |\ |\ |\ |\

, (75 × 103) + (25 × 104) = - CORRECT ANSWERS ✔✔(*Wrong)
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100 × 10^3 |\ |\




(-25) + (42) + (-62) + (20) = - CORRECT ANSWERS ✔✔-25
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(17) x (-19) = - CORRECT ANSWERS ✔✔-323
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(-17) - (-34) = - CORRECT ANSWERS ✔✔17
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-49/-7 = - CORRECT ANSWERS ✔✔7
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(20) / (-4) + (-2) x (-10) - (-2) x (7) = - CORRECT ANSWERS ✔✔29
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3 6/9 + 6 1/3 + 9 5/9 = - CORRECT ANSWERS ✔✔19 5/9
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4/7 x 9 4/11 = - CORRECT ANSWERS ✔✔5 27/77
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7 3/8 divided by 7 1/4 = - CORRECT ANSWERS ✔✔1 1/58
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8.13 X 0.123 = - CORRECT ANSWERS ✔✔0.99999
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0.5349 divided by 0.1420 = - CORRECT ANSWERS ✔✔3.7669014
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Which of the following is a method for controlling expectations? -
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CORRECT ANSWERS ✔✔Identify the source of emotional overload.
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