NCTI REVIEW CONSUMER DIGITAL
ELECTRONICS EXAM QUESTIONS
AND ANSWERS13
Which of the following ultra-high definition (UHD) Blu-ray attributes are two significant
improvements over the Blu-Rays 1080p HD picture quality? - ANSWERS-High dynamic range
(HDR) and wide color gamut (WCG).
Multi-core central processing units (CPU), large hard drives, Blu-ray player, Bluetooth, and Wi-Fi
are just some of the common features in which of the following? - ANSWERS-A) Video game
consoles.
What determines precision during the quantization process? - ANSWERS-A) The number of
values in the scale on the fixed grid.
C) The number of quantizing errors.
D) The output values of a pulse code modulator.
What component is the anchor to most high-end home entertainment systems? - ANSWERS-
Receiver.
List the order of preference when making analog connections to an analog TV? - ANSWERS-(1)
Component video; (2) S-video; (3) composite video; and (4) radio frequency (RF).
What is the term for the standardized analog audio signal output level from consumer
electronics devices? - ANSWERS-C) Line level.
, What is one advantage of using the Sony/Philips Digital Interface (S/PDIF) to connect audio
hardware? - ANSWERS-B) S/PDIF produces a digital signal that is robust and less vulnerable to
electrical interference.
C) S/PDIF uses a laser to transmit all the optical signals, which eliminates interference and
impairments.
D) S/PDIF allows a single cable to interconnect devices.
Why is it considered a best practice to use RCA cables provide by the cable operator instead of
RCA cables provided by the customer? - ANSWERS-RCA cables provided by the customer are
sometimes of questionable quality.
What are the primary things to check when troubleshooting a remote control? - ANSWERS-
Make sure the consumer electronics selector switch is in the correct position; check the
batteries; and reprogram the remote control.
The National Television System Committee (NTSC) - ANSWERS-What is the name of the group
that established the initial technical standards for the television industry, ensuring a single
system would deliver consistent service across the nation?
Quadrature Amplitude Modulation (QAM) - ANSWERS-What signal modulation technique do
cable operators use to transport digital television signals through the cable network?
The use of progressive scanning mode in EDTV. - ANSWERS-What is the major change in
enhance definition tv (EDTV) that improved picture quality over standard definition tv (SDTV)?
The U.S. Deficit Reduction Act. - ANSWERS-What legislation required all television stations
switch to digital -only broadcasting?
DTAs do not communicate RF signal upstream. - ANSWERS-Why are digital terminal adapters
(DTA) more cost effective than a full- featured set-top-box (STB)?
ELECTRONICS EXAM QUESTIONS
AND ANSWERS13
Which of the following ultra-high definition (UHD) Blu-ray attributes are two significant
improvements over the Blu-Rays 1080p HD picture quality? - ANSWERS-High dynamic range
(HDR) and wide color gamut (WCG).
Multi-core central processing units (CPU), large hard drives, Blu-ray player, Bluetooth, and Wi-Fi
are just some of the common features in which of the following? - ANSWERS-A) Video game
consoles.
What determines precision during the quantization process? - ANSWERS-A) The number of
values in the scale on the fixed grid.
C) The number of quantizing errors.
D) The output values of a pulse code modulator.
What component is the anchor to most high-end home entertainment systems? - ANSWERS-
Receiver.
List the order of preference when making analog connections to an analog TV? - ANSWERS-(1)
Component video; (2) S-video; (3) composite video; and (4) radio frequency (RF).
What is the term for the standardized analog audio signal output level from consumer
electronics devices? - ANSWERS-C) Line level.
, What is one advantage of using the Sony/Philips Digital Interface (S/PDIF) to connect audio
hardware? - ANSWERS-B) S/PDIF produces a digital signal that is robust and less vulnerable to
electrical interference.
C) S/PDIF uses a laser to transmit all the optical signals, which eliminates interference and
impairments.
D) S/PDIF allows a single cable to interconnect devices.
Why is it considered a best practice to use RCA cables provide by the cable operator instead of
RCA cables provided by the customer? - ANSWERS-RCA cables provided by the customer are
sometimes of questionable quality.
What are the primary things to check when troubleshooting a remote control? - ANSWERS-
Make sure the consumer electronics selector switch is in the correct position; check the
batteries; and reprogram the remote control.
The National Television System Committee (NTSC) - ANSWERS-What is the name of the group
that established the initial technical standards for the television industry, ensuring a single
system would deliver consistent service across the nation?
Quadrature Amplitude Modulation (QAM) - ANSWERS-What signal modulation technique do
cable operators use to transport digital television signals through the cable network?
The use of progressive scanning mode in EDTV. - ANSWERS-What is the major change in
enhance definition tv (EDTV) that improved picture quality over standard definition tv (SDTV)?
The U.S. Deficit Reduction Act. - ANSWERS-What legislation required all television stations
switch to digital -only broadcasting?
DTAs do not communicate RF signal upstream. - ANSWERS-Why are digital terminal adapters
(DTA) more cost effective than a full- featured set-top-box (STB)?
