NCTI Field Tech 2 to 3
100% SOLUTION
2023//2024
What is one reason why broadband cable operators install fiber optic cables 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 dif...
NCTI Field Tech 2 to 3
100% SOLUTION
2023//2024
What is one reason why broadband cable operators install fiber optic cables 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 FTTN and FTTC - 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) - 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 - ANSWER Distributed Star
Which element of a PON(Passive Optical Network) uses a Bragg grating filter -
ANSWER OLT(Optical Line Terminal)
Which element of a PON(Passive Optical Network) uses Patch Panels - 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) - 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 the following is a method for controlling expectations - ANSWER focus on the
bigger picture rather than smaller tasks
Which of the following best describes stereotyped thinking - ANSWER Presuming that
all members of a group have certain characteristics
The attribute of being "active" as a critical thinker means - 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 - 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 - 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 - ANSWER Identifying the problem
Why should you take the time to take notes and accurately record data at each job
location - 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 - ANSWER
Verifying the Solution
To break the habit of a negative self-talk cycle - 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 - ANSWER more likely to
improve your motivation and be a better problem solver
, Which of the following characterizes the successful troubleshooter - 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 -
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 -
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 - ANSWER Diagnosing symptoms
When replacing a splitter to resolve a digital TV(DTV) service problem, what does
confirming the splitter output levels before attaching the output connectors do? -
ANSWER Confirmation reinforces the tech's confidence that the problem will be
resolved by replacing the splitter
Which of the following DTV(digital TV) trouble calls could have been avoided with
customer education about the product - ANSWER the digital set-top box(STB)
overheats
When troubleshooting a digital TV(DTV) authorization issue, what can be verified using
the set-top box(STB) diagnostic page - ANSWER STB reception of authorization
message data
Which type of set-top box (STB) operates more like Data Over Cable Service Interface
Specification(DOCSIS) cable modems with return channels on the same frequencies
used for cable modems - ANSWER STB with DOCSIS Set-top Gateway(DSG) client
software and embedded DOCSIS modems
Because the spectral density of a quadrature amplitude modulation(QAM) channel is
much higher than that of an analog TV channel, what is done to ensure equal power in
all channels in a network with analog and digital modulation channels - ANSWER
Operate the analog TV channels at higher amplitude level than the QAM channels
What does a set-top box (STB) diagnostic page of a quadrature amplitude
modulation(QAM) channel showing signal-to-noise ratio(SNR) near or below 30 dB
indicate - ANSWER the QAM channel quality is on the edge for reliable reception, and
the source of the problem is likely in the distribution network or customer premises
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