NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
What uses the 2.4-GHz band and runs at 54 Mbps? -
correct answer ✅802.11g
What is one reason why broadband cable operators install fiber-
optic cable 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 the fiber-to-the-node (FTTN) and
fiber-to-the-curb (FTTC) topologies? -
correct answer ✅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)? -
correct answer ✅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? -
correct answer ✅Distributed star.
,NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
Which element of a passive optical network (PON) uses a Bragg
grating filter? -
correct answer ✅Optical line terminal (OLT).
Which element of a passive optical network (PON) uses patch
panels? -
correct answer ✅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)? -
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.
,NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
Which of the following describes a fiber pigtail? -
correct answer ✅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? -
correct answer ✅Before stripping the plastic coating from the
fiber.
Which of the following are statements of true axioms? -
correct answer ✅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.
Simplify and solve the equation: If E = IR then I = ? -
correct answer ✅E/R
The square of 7 = -
correct answer ✅49
The square root of 81 = -
correct answer ✅9
, NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
0.00004 = ______ x 10 to the power of ______. -
correct answer ✅4, -5
(75 x 10 to the power of 3) + (25 x 10 to the power of 4) = -
correct answer ✅32.5 x 10 to the power of 4
10 to the power of -3 has a metric prefix of ______. -
correct answer ✅Milli
(480 x 10 to the power of -5) divided by (60 x 10 to the power of -3)
=-
correct answer ✅8 x 10 to the power of -2
(250 x 10 to the power of -6) - (7 x 10 to the power of -5) = -
correct answer ✅180 x 10 to the power of -6
(75 × 103) + (25 × 104) = -
correct answer ✅(*Wrong) 100 × 10^3
FINAL EXAM QUESTIONS AND ANSWERS
What uses the 2.4-GHz band and runs at 54 Mbps? -
correct answer ✅802.11g
What is one reason why broadband cable operators install fiber-
optic cable 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 the fiber-to-the-node (FTTN) and
fiber-to-the-curb (FTTC) topologies? -
correct answer ✅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)? -
correct answer ✅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? -
correct answer ✅Distributed star.
,NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
Which element of a passive optical network (PON) uses a Bragg
grating filter? -
correct answer ✅Optical line terminal (OLT).
Which element of a passive optical network (PON) uses patch
panels? -
correct answer ✅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)? -
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.
,NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
Which of the following describes a fiber pigtail? -
correct answer ✅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? -
correct answer ✅Before stripping the plastic coating from the
fiber.
Which of the following are statements of true axioms? -
correct answer ✅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.
Simplify and solve the equation: If E = IR then I = ? -
correct answer ✅E/R
The square of 7 = -
correct answer ✅49
The square root of 81 = -
correct answer ✅9
, NCTI FIELD TECH 2 TO 3 PROGRESSION
FINAL EXAM QUESTIONS AND ANSWERS
0.00004 = ______ x 10 to the power of ______. -
correct answer ✅4, -5
(75 x 10 to the power of 3) + (25 x 10 to the power of 4) = -
correct answer ✅32.5 x 10 to the power of 4
10 to the power of -3 has a metric prefix of ______. -
correct answer ✅Milli
(480 x 10 to the power of -5) divided by (60 x 10 to the power of -3)
=-
correct answer ✅8 x 10 to the power of -2
(250 x 10 to the power of -6) - (7 x 10 to the power of -5) = -
correct answer ✅180 x 10 to the power of -6
(75 × 103) + (25 × 104) = -
correct answer ✅(*Wrong) 100 × 10^3
