Extron AV Associate Certification Exam Study Guide Verified - Practice Exam Solutions

Extron AV Associate Certification Exam Study Guide Verified - Practice Exam Solutions 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 Which of the following is the average rate of speed at which sound travels through air, measured at sea level and 70F/20C degrees? - answer - 1128 feet/second (343 meters/second) The rate at which the sound vibrations repeat is called: - answer - Fr