ACE 2026/2027 FINAL NCTI PROGRESSION FIELD
TECH 4 PRACTICE QUESTIONS AND ANSWERS
GRADED A+
◉ What is one reason why broadband cable operators install
fiberoptic cable in stages instead of changing the infrastructure all at
once? 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? 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)? 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? Answer: Distributed star.
◉ Which element of a passive optical network (PON) uses a Bragg
grating filter? Answer: Optical line terminal (OLT).
◉ Which element of a passive optical network (PON) uses patch
panels? 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)? 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? 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? Answer:
Fiberoptic 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?
Answer: Before stripping the plastic coating from the fiber.
◉ Which of the following are statements of true axioms? 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 = ? Answer: E/R
◉ The square of 7 = Answer: 49
◉ The square root of 81 = Answer: 9
◉ 0.00004 = ______ x 10 to the power of ______. Answer: 4, -5
◉ (75 x 10 to the power of 3) + (25 x 10 to the power of 4) =
Answer: 32.5 x 10 to the power of 4
◉ 10 to the power of -3 has a metric prefix of ______. Answer: Milli
◉ (480 x 10 to the power of -5) divided by (60 x 10 to the power of -
3) = 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) =
Answer: 180 x 10 to the power of -6
◉ (75 × 103) + (25 × 104) = Answer: (*Wrong) 100 × 10^3
◉ (-25) + (42) + (-62) + (20) = Answer: -25
, ◉ (17) x (-19) = Answer: -323
◉ (-17) - (-34) = Answer: 17
◉ -49/-7 = Answer: 7
◉ (20) / (-4) + (-2) x (-10) - (-2) x (7) = Answer: 29
◉ 3 6/9 + 6 1/3 + 9 5/9 = Answer: 19 5/9
◉ 4/7 x 9 4/11 = Answer: 5 27/77
◉ 7 3/8 divided by 7 1/4 = Answer: 1 1/58
◉ 8.13 X 0.123 = Answer: 0.99999
◉ 0.5349 divided by 0.1420 = Answer: 3.7669014 ◉ Which of the
following is a method for controlling expectations? Answer: Identify
the source of emotional overload.
TECH 4 PRACTICE QUESTIONS AND ANSWERS
GRADED A+
◉ What is one reason why broadband cable operators install
fiberoptic cable in stages instead of changing the infrastructure all at
once? 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? 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)? 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? Answer: Distributed star.
◉ Which element of a passive optical network (PON) uses a Bragg
grating filter? Answer: Optical line terminal (OLT).
◉ Which element of a passive optical network (PON) uses patch
panels? 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)? 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? 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? Answer:
Fiberoptic 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?
Answer: Before stripping the plastic coating from the fiber.
◉ Which of the following are statements of true axioms? 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 = ? Answer: E/R
◉ The square of 7 = Answer: 49
◉ The square root of 81 = Answer: 9
◉ 0.00004 = ______ x 10 to the power of ______. Answer: 4, -5
◉ (75 x 10 to the power of 3) + (25 x 10 to the power of 4) =
Answer: 32.5 x 10 to the power of 4
◉ 10 to the power of -3 has a metric prefix of ______. Answer: Milli
◉ (480 x 10 to the power of -5) divided by (60 x 10 to the power of -
3) = 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) =
Answer: 180 x 10 to the power of -6
◉ (75 × 103) + (25 × 104) = Answer: (*Wrong) 100 × 10^3
◉ (-25) + (42) + (-62) + (20) = Answer: -25
, ◉ (17) x (-19) = Answer: -323
◉ (-17) - (-34) = Answer: 17
◉ -49/-7 = Answer: 7
◉ (20) / (-4) + (-2) x (-10) - (-2) x (7) = Answer: 29
◉ 3 6/9 + 6 1/3 + 9 5/9 = Answer: 19 5/9
◉ 4/7 x 9 4/11 = Answer: 5 27/77
◉ 7 3/8 divided by 7 1/4 = Answer: 1 1/58
◉ 8.13 X 0.123 = Answer: 0.99999
◉ 0.5349 divided by 0.1420 = Answer: 3.7669014 ◉ Which of the
following is a method for controlling expectations? Answer: Identify
the source of emotional overload.
