AVIXA CTS Exam Guide (Third Edition)
Glossary UPDATED ACTUAL Exam
Questions and CORRECT Answers
1/3 Octave Equalizer - CORRECT ANSWER - A graphic equalizer that provides 30 or 31
slider adjustments corresponding to specific fixed frequencies with fixed bandwidths, with the
frequencies centered at every 1/3 of an octave. The adjustment points shape the overall
frequency response of the system
4K - CORRECT ANSWER - An ultra-high-resolution video format with a resolution
approximately 4 times that of full HD (1920x1080 pixels). 4K formats include 3840x2160 pixels
(UHDTV) and 4096x2160 pixels (digital cinema, DCI)
8K - CORRECT ANSWER - An ultra-high-resolution video format with a resolution of
7680x4320 pixels, which is 16 times the resolution of full HD 1920x1080 pixels
9-Pin Connector - CORRECT ANSWER - The DB 9 is the most common type of
connector used in RS-232 control systems
Acceptable Viewing Area - CORRECT ANSWER - The viewing range for a screen;
suggested as a 60-degree arc of the far vertical edge of the screen being viewed
Access Point - CORRECT ANSWER - A network device that allows other devices to
connect to a network
Acoustic Echo Canceller - CORRECT ANSWER - Used in conferencing systems. The
echo canceller attempts to remove environmental echoes that are created at the far side from
sound reflected off hard surfaces and returned to conferencing microphones
Acoustics - CORRECT ANSWER - The properties or qualities of a room or building that
determine how sound is transmitted and reflected in it. The study of the properties of sound
,AES - CORRECT ANSWER - Audio Engineering Society
Allied Trade - CORRECT ANSWER - A business that collaborates with AV professionals
to complete a project
Alternating Current (AC) - CORRECT ANSWER - An electrical current that reverses its
direction periodically
Ambient Light - CORRECT ANSWER - The sum of all lighting in an area
Ambient Noise - CORRECT ANSWER - The sum of all sounds in an area
Amperage - CORRECT ANSWER - The amount of electric current flowing in a circuit.
Current is measured in amperes (amps), abbreviated as A
Amplifier - CORRECT ANSWER - A device for increasing the strength of signals
Amplitude - CORRECT ANSWER - The height of the waveform of a signal
Analog (Analogue) - CORRECT ANSWER - A continuously variable signal
Analog-to-Digital/Digital-to-Analog (AD/DA) Converters - CORRECT ANSWER -
Devices that convert signals from analog to digital or from digital to analog
Angularly Reflective Screen - CORRECT ANSWER - A screen that reflects light at the
same angle at which it arrived
ANSI - CORRECT ANSWER - American National Standards Institute
,Aperture - CORRECT ANSWER - The opening in an optical train that controls the
amount of light passing through
Arrayed Loudspeaker System - CORRECT ANSWER - A loudspeaker arrangement that
delivers sound from a single point in space
Artifact - CORRECT ANSWER - An element introduced into a signal during processing.
Not always a good thing
Aspect Ratio - CORRECT ANSWER - The ratio of image width to image height
Attack Time - CORRECT ANSWER - A setting within a digital signal processor that
determines how rapidly the signal level will be reduced once the volume exceeds the threshold.
If the attack time is too slow, then the sound will become distorted as the system adjusts
Attenuate - CORRECT ANSWER - To reduce the amplitude of a signal or current
Audio Coverage Uniformity Measurement Locations (ACUML) - CORRECT ANSWER -
The test points within a venue that have been determined to carry out the measurements for the
Audio Coverage Uniformity test
Audio Coverage Uniformity Plan (ACUP) - CORRECT ANSWER - A stand-alone
document that identifies the Audio Coverage Uniformity measurement locations for a particular
venue, using the AVIXA indication symbol
Audio Processor - CORRECT ANSWER - A device used to manipulate audio signals
Audio Return Channel (ARC) - CORRECT ANSWER - Introduced to the HDMI standard
with version 1.4. ARC allows a display to send audio data upstream to a receiver or surround-
sound controller, eliminating the need for a separate audio connection
, Audio Signal - CORRECT ANSWER - An electrical representation of sound
Audio Transduction - CORRECT ANSWER - The process of converting acoustical energy
into electrical energy or electrical energy back into acoustical energy
Audio Video Bridging (AVB) - CORRECT ANSWER - A standards-based audiovisual
Data Link layer protocol defined under IEEE 802.1-AVB. It used standard Ethernet cabling but
requires AVB-enabled switches and network components. AVB does not require separate
network infrastructure or dedicated bandwidth; AVB components automatically prioritize data.
AVB was recently renamed Time-Sensitive Networking to reflect the standard's applicability to
communication among different types of devices, such as network sensors
Audiovisual Infrastructure - CORRECT ANSWER - The physical building compnents that
make up the pathways, supports, and architectural elements required for audiovisual technical
equipment installations
Audiovisual Rack - CORRECT ANSWER - A housing unit for electronic equipment. The
inside of a typical AV industry rack is 19" (482.6mm) wide. Many of the technical specifications
for a rack, including size and equipment height, are determined by standards that have been
established by numerous standard-setting organizations. the outside width of the rack varies from
approximately 21" to 25" (530mm to 630mm)
Authority Having Jurisdiction (AHJ) - CORRECT ANSWER - An organization, office, or
individual responsible for enforcing the requirements of a code or standard of for approving
equipment, materials, installation, or procedures. In some places the authority having jurisdiction
may be known as the regional regulatory authority
Automatic Gain Control (AGC) - CORRECT ANSWER - A circuit that maintains a
constant output gain in response to input variables such as signal strength or ambient noise level
Automatic Private IP Addressing (APIPA) - CORRECT ANSWER - A Windows function
that assigns locally routable addresses from the reserved network 169.254.0.0/16 to devices that
do not have or cannot obtain an IP address. This allows devices to communicate with other
Glossary UPDATED ACTUAL Exam
Questions and CORRECT Answers
1/3 Octave Equalizer - CORRECT ANSWER - A graphic equalizer that provides 30 or 31
slider adjustments corresponding to specific fixed frequencies with fixed bandwidths, with the
frequencies centered at every 1/3 of an octave. The adjustment points shape the overall
frequency response of the system
4K - CORRECT ANSWER - An ultra-high-resolution video format with a resolution
approximately 4 times that of full HD (1920x1080 pixels). 4K formats include 3840x2160 pixels
(UHDTV) and 4096x2160 pixels (digital cinema, DCI)
8K - CORRECT ANSWER - An ultra-high-resolution video format with a resolution of
7680x4320 pixels, which is 16 times the resolution of full HD 1920x1080 pixels
9-Pin Connector - CORRECT ANSWER - The DB 9 is the most common type of
connector used in RS-232 control systems
Acceptable Viewing Area - CORRECT ANSWER - The viewing range for a screen;
suggested as a 60-degree arc of the far vertical edge of the screen being viewed
Access Point - CORRECT ANSWER - A network device that allows other devices to
connect to a network
Acoustic Echo Canceller - CORRECT ANSWER - Used in conferencing systems. The
echo canceller attempts to remove environmental echoes that are created at the far side from
sound reflected off hard surfaces and returned to conferencing microphones
Acoustics - CORRECT ANSWER - The properties or qualities of a room or building that
determine how sound is transmitted and reflected in it. The study of the properties of sound
,AES - CORRECT ANSWER - Audio Engineering Society
Allied Trade - CORRECT ANSWER - A business that collaborates with AV professionals
to complete a project
Alternating Current (AC) - CORRECT ANSWER - An electrical current that reverses its
direction periodically
Ambient Light - CORRECT ANSWER - The sum of all lighting in an area
Ambient Noise - CORRECT ANSWER - The sum of all sounds in an area
Amperage - CORRECT ANSWER - The amount of electric current flowing in a circuit.
Current is measured in amperes (amps), abbreviated as A
Amplifier - CORRECT ANSWER - A device for increasing the strength of signals
Amplitude - CORRECT ANSWER - The height of the waveform of a signal
Analog (Analogue) - CORRECT ANSWER - A continuously variable signal
Analog-to-Digital/Digital-to-Analog (AD/DA) Converters - CORRECT ANSWER -
Devices that convert signals from analog to digital or from digital to analog
Angularly Reflective Screen - CORRECT ANSWER - A screen that reflects light at the
same angle at which it arrived
ANSI - CORRECT ANSWER - American National Standards Institute
,Aperture - CORRECT ANSWER - The opening in an optical train that controls the
amount of light passing through
Arrayed Loudspeaker System - CORRECT ANSWER - A loudspeaker arrangement that
delivers sound from a single point in space
Artifact - CORRECT ANSWER - An element introduced into a signal during processing.
Not always a good thing
Aspect Ratio - CORRECT ANSWER - The ratio of image width to image height
Attack Time - CORRECT ANSWER - A setting within a digital signal processor that
determines how rapidly the signal level will be reduced once the volume exceeds the threshold.
If the attack time is too slow, then the sound will become distorted as the system adjusts
Attenuate - CORRECT ANSWER - To reduce the amplitude of a signal or current
Audio Coverage Uniformity Measurement Locations (ACUML) - CORRECT ANSWER -
The test points within a venue that have been determined to carry out the measurements for the
Audio Coverage Uniformity test
Audio Coverage Uniformity Plan (ACUP) - CORRECT ANSWER - A stand-alone
document that identifies the Audio Coverage Uniformity measurement locations for a particular
venue, using the AVIXA indication symbol
Audio Processor - CORRECT ANSWER - A device used to manipulate audio signals
Audio Return Channel (ARC) - CORRECT ANSWER - Introduced to the HDMI standard
with version 1.4. ARC allows a display to send audio data upstream to a receiver or surround-
sound controller, eliminating the need for a separate audio connection
, Audio Signal - CORRECT ANSWER - An electrical representation of sound
Audio Transduction - CORRECT ANSWER - The process of converting acoustical energy
into electrical energy or electrical energy back into acoustical energy
Audio Video Bridging (AVB) - CORRECT ANSWER - A standards-based audiovisual
Data Link layer protocol defined under IEEE 802.1-AVB. It used standard Ethernet cabling but
requires AVB-enabled switches and network components. AVB does not require separate
network infrastructure or dedicated bandwidth; AVB components automatically prioritize data.
AVB was recently renamed Time-Sensitive Networking to reflect the standard's applicability to
communication among different types of devices, such as network sensors
Audiovisual Infrastructure - CORRECT ANSWER - The physical building compnents that
make up the pathways, supports, and architectural elements required for audiovisual technical
equipment installations
Audiovisual Rack - CORRECT ANSWER - A housing unit for electronic equipment. The
inside of a typical AV industry rack is 19" (482.6mm) wide. Many of the technical specifications
for a rack, including size and equipment height, are determined by standards that have been
established by numerous standard-setting organizations. the outside width of the rack varies from
approximately 21" to 25" (530mm to 630mm)
Authority Having Jurisdiction (AHJ) - CORRECT ANSWER - An organization, office, or
individual responsible for enforcing the requirements of a code or standard of for approving
equipment, materials, installation, or procedures. In some places the authority having jurisdiction
may be known as the regional regulatory authority
Automatic Gain Control (AGC) - CORRECT ANSWER - A circuit that maintains a
constant output gain in response to input variables such as signal strength or ambient noise level
Automatic Private IP Addressing (APIPA) - CORRECT ANSWER - A Windows function
that assigns locally routable addresses from the reserved network 169.254.0.0/16 to devices that
do not have or cannot obtain an IP address. This allows devices to communicate with other
