View Full AVIXA AVIXA-CTS Exam Dumps and Practice Test Dumps

 

Question 201

Which specification identifies the amount of light a projector can produce?

1. Throw ratio
2. Lens shift
3. Contrast ratio
4. Light output

Correct Answer: 4

Explanation:

Projector light output identifies how much visible light the projector can produce and is commonly specified using lumens. It is an important consideration when determining whether projected images will remain sufficiently visible in the intended room. Throw ratio concerns the relationship between projection distance and image width, lens shift changes image position without physically moving the projector, and contrast ratio concerns differences between bright and dark portions of an image. Projector selection should also consider screen size, ambient illumination, viewing distance, content, and room conditions.

Question 202

Which audio connection carries a balanced signal using three conductors?

1. XLR
2. RCA
3. TS
4. Speaker wire

Correct Answer: 1

Explanation:

An XLR audio connection commonly uses three conductors for a balanced signal: positive, negative, and a reference or shield connection. Balanced transmission can provide improved resistance to certain types of externally induced interference when implemented correctly. RCA connections are commonly unbalanced, TS connections generally use two conductors for unbalanced audio, and speaker wire is designed for loudspeaker connections rather than standard balanced microphone signaling. Technicians should still verify the wiring configuration and equipment specifications because connector appearance alone does not guarantee a particular signal arrangement.

Question 203

Which network technology can deliver electrical power and data through one Ethernet cable?

1. Fiber optic
2. PoE
3. Coaxial RF
4. HDMI

Correct Answer: 2

Explanation:

Power over Ethernet, or PoE, allows compatible network equipment to receive electrical power through an Ethernet connection while also transmitting network data. This can simplify installation for devices such as access points, control hardware, cameras, and certain AV endpoints. Fiber-optic connections transmit light rather than electrical power, coaxial RF uses a different physical transmission method, and HDMI is a multimedia interface. PoE implementation requires compatible equipment, appropriate network infrastructure, and attention to available power budgets.

Question 204

Which acoustic treatment scatters reflected sound in multiple directions?

1. Absorber
2. Bass trap
3. Diffuser
4. Barrier

Correct Answer: 3

Explanation:

An acoustic diffuser scatters reflected sound energy in multiple directions rather than simply absorbing it. Diffusion can help distribute acoustic energy more evenly within a room and reduce the concentration of strong reflections from particular surfaces. An absorber reduces reflected energy, a bass trap is designed to address low-frequency behavior, and a barrier primarily limits sound transmission between spaces. Acoustic treatment should be selected according to room dimensions, frequency behavior, intended use, speaker placement, listener positions, and the desired acoustic characteristics.

Question 205

Which measurement indicates the electrical potential difference between two points?

1. Current
2. Voltage
3. Resistance
4. Capacitance

Correct Answer: 2

Explanation:

Voltage represents electrical potential difference between two points and is measured in volts. It is a fundamental electrical quantity used when evaluating power supplies, circuits, equipment requirements, and electrical distribution. Current measures the flow of electrical charge, resistance describes opposition to current flow, and capacitance describes the ability of a component or system to store electrical charge. AV technicians should verify voltage requirements before connecting equipment and should follow appropriate electrical safety procedures when measuring or working around energized circuits.

Question 206

Which video interface is commonly associated with professional digital video over coaxial infrastructure?

1. SDI
2. USB
3. VGA
4. DVI

Correct Answer: 1

Explanation:

SDI, or Serial Digital Interface, is widely used for professional digital video transmission over suitable coaxial infrastructure. It is common in broadcast and professional AV environments where reliable digital video distribution is required. USB is a general-purpose data interface, VGA is an older analog video interface, and DVI supports digital and, depending on its variant, analog display signals. SDI systems require compatible equipment, appropriate cable characteristics, suitable connectors, and adherence to the supported signal format and transmission distance.

Question 207

Which network condition describes variation in packet arrival timing?

1. Throughput
2. Jitter
3. Bandwidth
4. Addressing

Correct Answer: 2

Explanation:

Jitter describes variation in the timing of packet arrival across a network. In real-time AV applications, excessive jitter can interfere with smooth audio or video playback if the receiving system cannot adequately compensate for timing variation. Throughput measures successfully transferred data, bandwidth represents potential data-carrying capacity, and addressing identifies network destinations. Networked AV systems may use buffering, synchronization, quality-of-service mechanisms, or other techniques to manage timing variation depending on the protocol and application.

Question 208

Which display technology uses liquid crystals controlled by an electronic backlight system?

1. OLED
2. DLP
3. LCD
4. Plasma

Correct Answer: 3

Explanation:

LCD, or liquid crystal display, technology uses liquid crystal elements to control the passage of light from a backlight system. LCD displays are widely used in professional and consumer AV applications. OLED displays use self-emissive pixels, DLP is based on digital micromirror technology commonly used in projection, and plasma technology uses gas-discharge cells. Display technology selection should consider brightness, contrast, viewing conditions, image size, power consumption, operating environment, installation requirements, and the application’s visual performance needs.

Question 209

Which document establishes the sequence and timing of major project activities?

1. Project schedule
2. Cable map
3. Equipment datasheet
4. Test report

Correct Answer: 1

Explanation:

A project schedule establishes when major project activities are expected to occur and can identify dependencies, milestones, durations, and responsible parties. In an AV installation, scheduling may cover design, procurement, delivery, installation, programming, testing, commissioning, training, and handover. A cable map documents connection information, an equipment datasheet describes product specifications, and a test report records testing results. A well-maintained schedule helps coordinate resources and identify timing conflicts before they affect project completion.

Question 210

Which audio connector is commonly used for a single-channel unbalanced connection?

1. XLR
2. TRS
3. TS
4. AES3

Correct Answer: 3

Explanation:

A TS connector has tip and sleeve contacts and is commonly used for single-channel unbalanced audio connections. The tip carries the signal while the sleeve commonly provides the return or shield connection. XLR connectors are widely associated with professional balanced audio, TRS connectors can support balanced or stereo configurations depending on wiring, and AES3 is a digital audio interface standard rather than simply a connector type. Correct connector selection requires checking the signal format and the interfaces provided by both pieces of equipment.

Question 211

Which video characteristic determines whether motion appears smooth on a display?

1. Frame rate
2. Color gamut
3. Pixel depth
4. Screen gain

Correct Answer: 1

Explanation:

Frame rate indicates how many individual frames are presented during each second of video and has a significant influence on the appearance of motion. Higher or appropriately matched frame rates can provide smoother motion when supported throughout the signal chain. Color gamut concerns the range of reproducible colors, pixel depth concerns image information per pixel, and screen gain is a projection-screen characteristic. Source, processor, transmission path, and display should support compatible frame-rate formats to avoid synchronization or motion-related problems.

Question 212

Which device converts a network video stream into a display-ready signal?

1. Encoder
2. Decoder
3. Splitter
4. Amplifier

Correct Answer: 2

Explanation:

A decoder receives an encoded network media stream and converts it into an output signal suitable for downstream AV equipment such as a display or processor. In an AV-over-IP architecture, the encoder generally prepares a source for network transmission, while the decoder performs the receiving-side conversion. A splitter distributes a signal to multiple destinations, and an amplifier increases audio power. Decoder compatibility should be evaluated for resolution, compression format, network protocol, audio support, output interface, and required transmission performance.

Question 213

Which measurement unit is commonly used for acoustic sound pressure level?

1. Ohms
2. Lumens
3. Decibels
4. Watts

Correct Answer: 3

Explanation:

Sound pressure level is commonly expressed in decibels, abbreviated dB. Decibels provide a logarithmic way of describing relationships involving sound pressure and are widely used in AV audio measurements. Ohms describe electrical resistance or impedance, lumens describe luminous output, and watts describe power. Sound measurements should be interpreted with the appropriate reference and weighting method because different measurement conditions can produce different readings. Technicians commonly use sound-level measurements during commissioning to evaluate coverage and system performance.

Question 214

Which network mechanism can prioritize time-sensitive AV traffic?

1. QoS
2. DHCP
3. DNS
4. FTP

Correct Answer: 1

Explanation:

Quality of Service, or QoS, provides mechanisms for managing and prioritizing network traffic according to defined policies. In networked AV environments, QoS can help prioritize latency-sensitive or time-sensitive traffic when multiple traffic types share infrastructure. DHCP assigns network configuration, DNS resolves names, and FTP supports file transfers. QoS implementation depends on the network equipment and AV protocols being used. Proper configuration should follow the system design because incorrect prioritization can create unintended performance problems.

Question 215

Which projector feature moves the projected image without moving the projector body?

1. Digital compression
2. Lens shift
3. Signal routing
4. Keystone filtering

Correct Answer: 2

Explanation:

Lens shift allows the projected image to be moved vertically or horizontally through optical adjustment without physically repositioning the projector itself. This provides useful installation flexibility and can help maintain image geometry more naturally than relying on digital correction. Digital compression affects data representation, signal routing determines where signals are sent, and keystone correction compensates for certain geometric distortions. The available amount of lens shift depends on the projector and lens design, so installation planning should use the manufacturer’s specified range.

Question 216

Which cable tester function identifies incorrect conductor termination?

1. Continuity mapping
2. Screen brightness
3. Audio equalization
4. Color calibration

Correct Answer: 1

Explanation:

Continuity mapping can identify whether individual conductors are terminated at the expected corresponding positions on the other end of a cable. It can reveal conditions such as crossed pairs, opens, or certain wiring errors depending on the tester. Screen brightness, audio equalization, and color calibration address completely different AV functions. Cable verification is especially useful before commissioning because correcting wiring problems early can prevent difficult troubleshooting later. More advanced testers can also evaluate performance characteristics beyond basic conductor mapping.

Question 217

Which document records measured results from system testing?

1. Test report
2. Purchase order
3. Room booking
4. Marketing sheet

Correct Answer: 1

Explanation:

A test report records measurements, observations, pass or fail results, and other information gathered during system testing. In an AV project, it can document signal performance, audio levels, display measurements, control functions, network behavior, or other acceptance criteria. A purchase order records procurement information, a room booking concerns scheduling, and a marketing sheet provides promotional information. Detailed test reports provide evidence of system performance and can become useful reference material during acceptance, troubleshooting, maintenance, or future system modifications.

Question 218

Which digital audio interface commonly uses a two-channel professional serial format?

1. AES3
2. HDMI
3. SDI
4. VGA

Correct Answer: 1

Explanation:

AES3 is a professional digital audio interface standard commonly used to transport two channels of digital audio over suitable physical connections. It is found in professional audio and AV equipment and is designed for reliable digital audio exchange between compatible devices. HDMI can carry multimedia signals, SDI is primarily associated with professional digital video transmission, and VGA is an analog video interface. When integrating AES3 equipment, technicians should verify the physical interface, cable requirements, sampling characteristics, and compatibility of connected devices.

Question 219

Which factor determines how much audio delay is needed between distributed speakers?

1. Display size
2. Listener distance
3. Rack width
4. Screen gain

Correct Answer: 2

Explanation:

Listener distance is a key factor when determining delay relationships between distributed loudspeakers. Sound travels through air at a finite speed, so listeners may hear audio from speakers located at different distances at different times. Appropriate delay can improve perceived alignment and reduce distracting timing differences between speaker zones. Display size, rack width, and screen gain do not determine acoustic propagation timing. Delay design should also consider loudspeaker placement, processing latency, room geometry, and the intended listening positions.

Question 220

Which project record identifies approved changes to the original system design?

1. Revision history
2. Shipping manifest
3. Attendance sheet
4. Product brochure

Correct Answer: 1

Explanation:

Revision history records changes made to project documents or system designs and helps establish which version reflects the approved configuration. Maintaining revision information is important when AV projects evolve during design or installation because equipment substitutions, routing changes, room modifications, or client-approved adjustments may affect the final system. A shipping manifest tracks delivered goods, an attendance sheet records participation, and a product brochure provides general product information. Controlled documentation helps ensure that installers and technicians work from the correct approved information.