EXTRON AV ASSOCIATE CERTIFICATION EXAM AND
STUDY GUIDE LATEST 2024-2025 ACTUAL EXAM 250
QUESTIONS AND CORRECT |ALREADY GRADED A+
Which one of the following supports communication between subnets and across different networks, by
determining the next network point to which a packet is forwarded as its destination? -
ANSWERRouters
WANs cover wide geographical areas and are commonly used to link different locations together. -
ANSWER-TRUE
Which one of the following protocols is responsible for the actual delivery of data over a network? -
ANSWER-Transmission Control Protocol
192.168.100.101 is an example of which type of address? - ANSWER-IP Address
Which one of the following types of IP Addresses are automatically assigned to network devices using a
DHCP server? - ANSWER-Dynamic IP Address
Which one of the following OSI Reference layers provides logical IP addressing for all devices that
communicate over a network? - ANSWER-Network Layer 3
Which of the following network topologies daisy-chains the devices to a common medium where
information travels along a backbone? - ANSWER-Bus Topology
Category cable wire pairs are twisted together for which of the following purposes? - ANSWER-Cancel
out EMI from external sources
Which one of the following twisted pair wiring standards define the pinouts for a crossover cable
connection? - ANSWER-T568A to T568B
,When designing a network, which of the following is important to consider throughout the design
process? - ANSWER-All of the above
Which one of the following uses one-to-one transmission from one point in the network to another? -
ANSWER-Unicast
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-Frequency
Which of the following is related to the amount of energy that a sound wave carries? -
ANSWERAmplitude
Which of the following is a low voltage level that comes out of a microphone when someone speaks into
it? - ANSWER-Mic Level
Which of the following has two conductor wires, one for the hot audio signal, and one for ground? -
ANSWER-Unbalanced cables
Which of the following carries two independent channels for left and right audio, and creates the
impression of sound heard from various directions? - ANSWER-Stereo sound signals
When a microphone signal first enters a mixer, which of the following is used to control the input level of
the audio. - ANSWER-Gain
Which of the following is designed to capture spoken words limited to the speaker, commonly found on
podiums or in conference rooms and boardrooms? - ANSWER-Gooseneck microphone
An omnidirectional microphone pickup pattern has a coverage of: - ANSWER-360
Which of the following file types are part of the Moving Picture Experts Group 1, Audio Layer III encoding
techniques? - ANSWER-MP3
The human eye can differentiate individual picture frames at which of the following rates? -
ANSWER10-12 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-Pixels
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? -
ANSWERDisplayPort
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? -
ANSWERAspect 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
STUDY GUIDE LATEST 2024-2025 ACTUAL EXAM 250
QUESTIONS AND CORRECT |ALREADY GRADED A+
Which one of the following supports communication between subnets and across different networks, by
determining the next network point to which a packet is forwarded as its destination? -
ANSWERRouters
WANs cover wide geographical areas and are commonly used to link different locations together. -
ANSWER-TRUE
Which one of the following protocols is responsible for the actual delivery of data over a network? -
ANSWER-Transmission Control Protocol
192.168.100.101 is an example of which type of address? - ANSWER-IP Address
Which one of the following types of IP Addresses are automatically assigned to network devices using a
DHCP server? - ANSWER-Dynamic IP Address
Which one of the following OSI Reference layers provides logical IP addressing for all devices that
communicate over a network? - ANSWER-Network Layer 3
Which of the following network topologies daisy-chains the devices to a common medium where
information travels along a backbone? - ANSWER-Bus Topology
Category cable wire pairs are twisted together for which of the following purposes? - ANSWER-Cancel
out EMI from external sources
Which one of the following twisted pair wiring standards define the pinouts for a crossover cable
connection? - ANSWER-T568A to T568B
,When designing a network, which of the following is important to consider throughout the design
process? - ANSWER-All of the above
Which one of the following uses one-to-one transmission from one point in the network to another? -
ANSWER-Unicast
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-Frequency
Which of the following is related to the amount of energy that a sound wave carries? -
ANSWERAmplitude
Which of the following is a low voltage level that comes out of a microphone when someone speaks into
it? - ANSWER-Mic Level
Which of the following has two conductor wires, one for the hot audio signal, and one for ground? -
ANSWER-Unbalanced cables
Which of the following carries two independent channels for left and right audio, and creates the
impression of sound heard from various directions? - ANSWER-Stereo sound signals
When a microphone signal first enters a mixer, which of the following is used to control the input level of
the audio. - ANSWER-Gain
Which of the following is designed to capture spoken words limited to the speaker, commonly found on
podiums or in conference rooms and boardrooms? - ANSWER-Gooseneck microphone
An omnidirectional microphone pickup pattern has a coverage of: - ANSWER-360
Which of the following file types are part of the Moving Picture Experts Group 1, Audio Layer III encoding
techniques? - ANSWER-MP3
The human eye can differentiate individual picture frames at which of the following rates? -
ANSWER10-12 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-Pixels
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? -
ANSWERDisplayPort
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? -
ANSWERAspect 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
