NCTI FINAL EXAM PROGRESSION: FIELD TECH II - III CONVENTIONAL
What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the infrastructure all at once?
What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topo...
NCTI FINAL EXAM PROGRESSION:
FIELD TECH II - III CONVENTIONAL
What is one reason why broadband cable operators install fiber-optic cable in stages
instead of changing the infrastructure 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.
Simplify and solve the equation: If E = IR then I = ? - E/R
The square of 7 = - 49
The square root of 81 = - 9
0.00004 = ______ x 10 to the power of ______. - 4, -5
(75 x 10 to the power of 3) + (25 x 10 to the power of 4) = - 32.5 x 10 to the power of 4
10 to the power of -3 has a metric prefix of ______. - Milli
(480 x 10 to the power of -5) divided by (60 x 10 to the power of -3) = - 8 x 10 to the
power of -2
(250 x 10 to the power of -6) - (7 x 10 to the power of -5) = - 180 x 10 to the power of -6
(75 × 103) + (25 × 104) = - (*Wrong) 100 × 10^3
(-25) + (42) + (-62) + (20) = - -25
(17) x (-19) = - -323
(-17) - (-34) = - 17
-49/-7 = - 7
(20) / (-4) + (-2) x (-10) - (-2) x (7) = - 29
3 6/9 + 6 1/3 + 9 5/9 = - 19 5/9
4/7 x 9 4/11 = - 5 27/77
7 3/8 divided by 7 1/4 = - 1 1/58
8.13 X 0.123 = - 0.99999
0.5349 divided by 0.1420 = - 3.7669014
Which of the following is a method for controlling expectations? - Identify the source of
emotional overload.
, Which of the following best describes stereotyped thinking? - Presuming that all
members of a group have certain characteristics.
The attribute of being "active" as a critical thinker means - You observe and take notes
relevant to the issue.
What kind of reasoning is described as applying a general statement that you know to
be true to a new situation? - Deductive.
It is essential to pay attention to warning signs of stress overload. Poor attitude is one of
the behaviors that may indicate that you are overstressed. What are the symptoms of
poor attitude behavior? - A significant change in attitude with a noticeable movement
toward negative, hostile, cynical, or paranoid thoughts
You are at a customer's home and you are asking the customer whether the problem is
intermittent or constant. Which step are you using from the six-step troubleshooting
process? - Identifying the problem.
Why should you take the time to take notes and accurately record data at each job
location? - Notes and recorded data are tools that can help you accurately remember
events at a site that can help you determine a plan of action or evaluate the decisions
you made.
You are at a customer's home and you believe you have solved the problem. When you
check to be sure the resolution did not introduce any new problems, which step are you
using from the six-step troubleshooting process? - Verifying the solution.
To break the habit of a negative self-talk cycle - Tell yourself "not now" and move onto a
positive thought whenever negative thoughts occur.
By taking control of the expectations you have, you are - More likely to improve your
motivation and be a better problem solver.
Which of the following characterizes the successful troubleshooter? - Someone with an
inquisitive and relentless desire to solve and fix problems.
What must a technician be aware of when analyzing a digital TV (DTV) problem? -
There is frequently more than one contributor to a specific DTV service problem.
After a digital TV (DTV) service problem has been analyzed and possible causes
considered, what is accomplished by isolating the various network elements? - It
narrows the scope of likely problem sources.
During which step of the six-step troubleshooting process for a digital TV (DTV) service
problem are quadrature amplitude modulation (QAM) channel measurements typically
taken? - Diagnosing symptoms.
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