NCTI FIELD TECH II - III CONVENTIONAL –
QUESTIONS & ANSWERS
What is one reason why broadband cable operators install fiber-optic 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 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 -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? - Answer -Before stripping the plastic
coating from the fiber.
Which of these components is used in a passive optical network (PON)? - Answer -
Optical splitters
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 -32.5 × 104
(-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.
QUESTIONS & ANSWERS
What is one reason why broadband cable operators install fiber-optic 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 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 -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? - Answer -Before stripping the plastic
coating from the fiber.
Which of these components is used in a passive optical network (PON)? - Answer -
Optical splitters
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 -32.5 × 104
(-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.
