NCTI Field Tech 2 to 3
What is one reason why broadband cable operators install fiber optic cables 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 FTTN and FTTC - correct answer 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 PON(Passive Optical Network) - correct
answer Optical Splitters
Which type of Star topology used in a PON(Passive Optical Network) places the PON
splitters into FATS(Fiber Access Terminals) located deep in the network and closer to
the customer premises than the centralized split - correct answer Distributed Star
Which element of a PON(Passive Optical Network) uses a Bragg grating filter - correct
answer OLT(Optical Line Terminal)
Which element of a PON(Passive Optical Network) uses Patch Panels - correct answer
ODN(Optical Distribution Network)
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
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 is a method for controlling expectations - correct answer focus
on the bigger picture rather than smaller tasks
Which of the following best describes stereotyped thinking - correct answer
Presuming that all members of a group have certain characteristics
, The attribute of being "active" as a critical thinker means - correct answer 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 - correct answer 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 - correct answer A significant change in attitude with a
noticeable movement toward negative, hostile, cynical, or paranoid thoughts
You are at a customer's house and you are asking the customer whether the problem is
intermittent or constant. Which step are you using from the six-step troubleshooting
process - correct answer Identifying the problem
Why should you take the time to take notes and accurately record data at each job
location - correct answer 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 there are no new problems, which step are you using - correct answer
Verifying the Solution
To break the habit of a negative self-talk cycle - correct answer Tell yourself "not now"
and move onto a positive thought whenever negative thoughts occur
By taking control of the expectations you have you are - correct answer more likely to
improve your motivation and be a better problem solver
Which of the following characterizes the successful troubleshooter - correct answer
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 -
correct answer 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 - correct
answer 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 QAM(Quadrature amplitude modulation) channel measurements typically
taken - correct answer Diagnosing symptoms
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