EXTRON CONTROL SPECIALIST CERTIFICATION SCRIPT
2026 QUESTIONS WITH SOLUTIONS GRADED A+
● The human eye can differentiate individual picture frames at which of the following
rates?. Answer: 10-12 frames per second
● Which of the following projects a ray of light through a lens to display an image onto
a surface?. Answer: Projector
● Which of the following is the smallest component of a digital image, composed of
individual Red, Green, and Blue - RGB color elements?. Answer: Pixel
● Chroma Subsampling is a form of:. Answer: Compression
● True or False: Progressive Scanning draws each line sequentially from left to right,
creating a full image frame in one pass from top to bottom.. Answer: True
● Which of the following describes how often the display can redraw the screen to
show a new image?. Answer: Refresh Rate
● Which of the following interfaces renders images as micro packets similar to
network data?. Answer: DisplayPort
● Which of the following is used for connecting peripheral devices (keyboard, mouse)
to computers, as well as for power to charge portable devices?. Answer: USB
● Which one of the following describes the relationship of width and height of an
image?. Answer: Aspect Ratio
● Which one of the following measures an image's width and height using pixels?.
Answer: Resolution
● Which one of the following consists of thin organic layers between two conductors
(transparent anode and metallic cathode) that convert electric current into light?.
Answer: OLED
● Which one of the following is a reflective surface made up of thousands of tiny
mirrors, each representing a single pixel?. Answer: DLP
, ● Which one of the following is the smallest component of a screen image, composed
of individual Red, Green, and Blue - RGB primary colors?. Answer: Pixels
● Interlaced scanning may be described as:. Answer: Images drawn in two alternate fields
as odd & even numbered lines
● Which one of the following indicates the amount of data used per pixel to present
color information?. Answer: Color Bit Depth
● Which one of the following is a digital transmission interface for uncompressed
video, multi-channel audio, and control data that also supports High-bandwidth Digital
Content Protection - HDCP?. Answer: HDMI (High Definition Multimedia Interface)
● Which one of the following digital broadcast standards is adopted in Europe, Asia,
and Africa?. Answer: DVB (Digital Video Broadcasting)
● DVI and HDMI both use a signaling method known as:. Answer: TMDS
(Transmission-Minimized Differential Signaling)
● Which of the following defines the science or study of sound, how it's created, its
ability to travel within a space, and the way it's managed?. Answer: Acoustics
● Which of the following represents a logarithmic ratio to measure the change in
sound intensity or electric signals?. Answer: Decibel (dB)
● Which of the following has a ground wire, and carries analog signals as one hot wire
and one cold wire in reverse polarity to cancel noise and interference?. Answer:
Balanced cables
● Which of the following connector is commonly used for twisted pair cabling that
carries digital audio over the network?. Answer: RJ-45
● Which of the following performs as a transducer, converting one form of energy to
another, and is classified based on how it captures sound?. Answer: Microphone
● Which of the following is referred to as the safety zone that allows audio peaks to
exceed the nominal level without clipping?. Answer: Headroom
● Which of the following is an example of dropping the sound levels for background
music, to focus the audio on an important voice-over announcement?. Answer: Ducking
● Which of the following is the last link of the audio signal path?. Answer: Loudspeaker
2026 QUESTIONS WITH SOLUTIONS GRADED A+
● The human eye can differentiate individual picture frames at which of the following
rates?. Answer: 10-12 frames per second
● Which of the following projects a ray of light through a lens to display an image onto
a surface?. Answer: Projector
● Which of the following is the smallest component of a digital image, composed of
individual Red, Green, and Blue - RGB color elements?. Answer: Pixel
● Chroma Subsampling is a form of:. Answer: Compression
● True or False: Progressive Scanning draws each line sequentially from left to right,
creating a full image frame in one pass from top to bottom.. Answer: True
● Which of the following describes how often the display can redraw the screen to
show a new image?. Answer: Refresh Rate
● Which of the following interfaces renders images as micro packets similar to
network data?. Answer: DisplayPort
● Which of the following is used for connecting peripheral devices (keyboard, mouse)
to computers, as well as for power to charge portable devices?. Answer: USB
● Which one of the following describes the relationship of width and height of an
image?. Answer: Aspect Ratio
● Which one of the following measures an image's width and height using pixels?.
Answer: Resolution
● Which one of the following consists of thin organic layers between two conductors
(transparent anode and metallic cathode) that convert electric current into light?.
Answer: OLED
● Which one of the following is a reflective surface made up of thousands of tiny
mirrors, each representing a single pixel?. Answer: DLP
, ● Which one of the following is the smallest component of a screen image, composed
of individual Red, Green, and Blue - RGB primary colors?. Answer: Pixels
● Interlaced scanning may be described as:. Answer: Images drawn in two alternate fields
as odd & even numbered lines
● Which one of the following indicates the amount of data used per pixel to present
color information?. Answer: Color Bit Depth
● Which one of the following is a digital transmission interface for uncompressed
video, multi-channel audio, and control data that also supports High-bandwidth Digital
Content Protection - HDCP?. Answer: HDMI (High Definition Multimedia Interface)
● Which one of the following digital broadcast standards is adopted in Europe, Asia,
and Africa?. Answer: DVB (Digital Video Broadcasting)
● DVI and HDMI both use a signaling method known as:. Answer: TMDS
(Transmission-Minimized Differential Signaling)
● Which of the following defines the science or study of sound, how it's created, its
ability to travel within a space, and the way it's managed?. Answer: Acoustics
● Which of the following represents a logarithmic ratio to measure the change in
sound intensity or electric signals?. Answer: Decibel (dB)
● Which of the following has a ground wire, and carries analog signals as one hot wire
and one cold wire in reverse polarity to cancel noise and interference?. Answer:
Balanced cables
● Which of the following connector is commonly used for twisted pair cabling that
carries digital audio over the network?. Answer: RJ-45
● Which of the following performs as a transducer, converting one form of energy to
another, and is classified based on how it captures sound?. Answer: Microphone
● Which of the following is referred to as the safety zone that allows audio peaks to
exceed the nominal level without clipping?. Answer: Headroom
● Which of the following is an example of dropping the sound levels for background
music, to focus the audio on an important voice-over announcement?. Answer: Ducking
● Which of the following is the last link of the audio signal path?. Answer: Loudspeaker
