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EXTRON AV ASSOCIATE CERT EXAM WITH ALL QUESTIONS AND VERIFIED ANSWERS
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EXTRON AV ASSOCIATE CERT EXAM WITH ALL QUESTIONS AND VERIFIED ANSWERS...
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What is the speed at which the human eye can recognize distinct pictureframes? - ANSWER 10-12 frames per second
Which of the following should project a ray of light through a lens to display an
image onto something? - ANSWER Projector
Which of the following is the smallest unit of a digital picture that is made up of
single Red, Green and Blue - RGB colour components? - ANSWER Pixel
Chroma Subsampling is a type of: - ANSWER Compression
True or False: Progressive Scanning draws every line one after the other from
left to right, drawing a complete image frame in one pass from top to bottom. -
ANSWER True
Which of the following is the rate at which the display redraws the screen to
represent a new image? - ANSWER Refresh Rate
Which of the following listed interfaces sends out images as micro packets
similar to network data? - ANSWER DisplayPort
Which of the following is used to connect peripheral devices to the computer
(such as keyboard, mouse) and for power to charge portable devices? -
ANSWER USB
,Which of the following describes the relationship of width and height of an
image? - ANSWER Aspect Ratio
Which of the following measures an images width and height using pixels? -
ANSWER Resolution
Which of the following consists of thin organic layers between two conductors,
which are usually a transparent anode and a metallic cathode, and convert
electric current into light? - ANSWER OLED
Which of the following is a reflective surface consisting of thousands of tiny
mirrors, wherein each mirror represents one pixel? - ANSWER DLP
Which of the following is the smallest integral unit that builds a screen image
by combining 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 among the following is a digital transmission interface for uncompressed
video, multi-channel audio and control data supporting High-bandwidth Digital
Content Protection - HDCP? - ANSWER HDMI (High Definition Multimedia
Interface)
Which among the following digital broadcast standard is adopted in Europe,
Asia and Africa? - ANSWER DVB (Digital Video Broadcasting)
, DVI and HDMI both make use of a signaling methodology known as: -
ANSWER TMDS - Transmission-Minimized Differential Signaling
Which one of the following describes the science or study of sound, how it is
created its ability to travel within a space and the way it is controlled? -
ANSWER Acoustics
Which of the following is a logarithmic ratio to measure the change in sound
intensity or electric signals? - ANSWER Decibel (dB)
Which of the following cables are balanced, 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 type of connector is commonly used for twisted pair
cabling that carries digital audio over the network? - ANSWER RJ-45
Which of the following acts as a transducer and changes one form of energy to
another and also can be categorized based on its method of sound pick-up? -
ANSWER Microphone
Which of the following is known as the safety zone that allows audio peaks to
exceed the nominal level w/o clipping? - ANSWER Headroom
Which of the following is the term for reducing the sound levels of background
music, giving way to an important voice-over announcement? - ANSWER
Ducking
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