EXTRON UPDATED Exam Questions and
CORRECT Answers
The human eye can differentiate individual picture frames at which of the following rates? -
CORRECT 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? - CORRECT A...
The human eye can differentiate individual picture frames at which of the following rates? -
CORRECT 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? - CORRECT ANSWER- Projector
Which of the following is the smallest component of a digital image, composed of individual
Red, Green, and Blue - RGB color elements? - CORRECT ANSWER- Pixel
Chroma Subsampling is a form of: - CORRECT 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. - CORRECT ANSWER- True
Which of the following describes how often the display can redraw the screen to show a new
image? - CORRECT ANSWER- Refresh Rate
Which of the following interfaces renders images as micro packets similar to network data? -
CORRECT 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? - CORRECT ANSWER- USB
Which one of the following describes the relationship of width and height of an image? -
CORRECT ANSWER- Aspect Ratio
Which one of the following measures an image's width and height using pixels? - CORRECT
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? - CORRECT
ANSWER- OLED
Which one of the following is a reflective surface made up of thousands of tiny mirrors, each
representing a single pixel? - CORRECT 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? - CORRECT ANSWER- Pixels
Interlaced scanning may be described as: - CORRECT 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? - CORRECT 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? - CORRECT ANSWER- HDMI
Which one of the following digital broadcast standards is adopted in Europe, Asia, and
Africa? - CORRECT ANSWER- DVB
DVI and HDMI both use a signaling method known as: - CORRECT ANSWER- TMDS
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? - CORRECT ANSWER- Acoustics
- CORRECT 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? - CORRECT ANSWER-
Balanced cables
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