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NCTI exam 2023 with 100% correct answers
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NCTI exam 2023 with 100% correct answers
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NCTIWhich 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
quadrature amplitude modulation (QAM) channel measurements typically taken? - correct answer -
Diagnose
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? - correct answer -Confirmation reinforces the
technician's confidence that the problem will be resolved by replacing the splitter.
Which of the following digital TV (DTV) trouble calls could have been avoided with customer education
about the product? - correct answer -STB Overheating; IR Sensor; VOD recording; Occasional freezing
When troubleshooting a digital TV (DTV) authorization issue, what can be verified using the set-top box
(STB) diagnostic page? - correct 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? - correct
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
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