Free AVIXA CTS Practice Exam with Questions & Answers | Set: 8

Mic-level, line-level audio, and relay control are all low-voltage, low-noise sensitive signal types. They can typically share a common cable pathway with proper shielding. RF and loudspeaker cables, on the other hand, can cause interference and should be routed separately.

“Group cables by signal type to reduce interference: low-voltage control and audio together; high-power (loudspeaker or AC) separately.”

— CTS Exam Guide, Cabling and Signal Management Chapter

During an initial site survey, understanding the overall scope of the AV solution provides the foundational insight needed for designing a system that meets client requirements. This ensures alignment with objectives and informs subsequent phases of the project.

CTS Technology Specialist Reference

The CTS curriculum advises focusing on the AV solution scope to guide design and implementation processes effectively, ensuring client needs are addressed.

The question relates to viewer distance based on image height, which is part of image size and viewing distance calculations under AVIXA design principles.

This screen is 65" diagonal with a 16:9 aspect ratio. The image height is given as 31.6" (80.2 cm).

According to the AVIXA CTS Exam Guide, the formula for minimum (nearest) viewing distance for a basic decision-making (BDM) environment is:

Minimum viewing distance = 1.5 × Image Height

— AVIXA CTS Exam Guide, 5th Edition – Chapter 7: Display Design, p. 155

So in this case:

Image Height = 31.6 inches (80.2 cm)

Nearest Viewing Distance = 1.5 × 31.6 inches = 47.4 inches ≈ 4'8" (1.4 m)

Thus, the correct and closest viewing distance to ensure readability and visual comfort is Option C: 4'8" (1.4 m).

Note: For analytical decision-making (ADM), a shorter distance might be used (up to 4× height), and for passive viewing (PV), longer distances are acceptable. But this question implies nearest (minimum) viewer positioning, hence the 1.5x rule applies.

???? References:

AVIXA CTS Exam Guide, 5th Edition – Chapter 7: Display Design, p. 150–160

AVIXA Design Reference: Image Size for 2D Content in Audiovisual Systems (ANSI/AVIXA V202.01:2016)

Higher resolution (like 1080p) increases bandwidth demands. While the cable was sufficient for 720p, switching to 1080p may exceed its capabilities—especially over longer distances (like 8 meters), leading to sparkling, dropouts, or signal instability.

“HDMI signal degradation over long runs is often caused by insufficient bandwidth handling, particularly at higher resolutions like 1080p or 4K.”

— CTS Exam Guide, Signal Integrity and Cabling Standards

A trunk line should be set up when connecting two switches with multiple VLANs. A trunk line allows the passage of traffic for multiple VLANs between switches. It tags the packets with the appropriate VLAN identifier, enabling the switches to properly route the traffic to the correct VLANs. This setup is essential for maintaining network segmentation and ensuring that all VLAN traffic is transmitted across the network as intended. Trunk lines are a standard networking practice for managing VLAN traffic between switches efficiently.

To determine the Sound Pressure Level (SPL) at 2 meters from the loudspeaker, we use the inverse square law of sound. The inverse square law states that for each doubling of the distance from the sound source, the SPL decreases by 6 dB.

Given:

Sensitivity: 90 dB SPL at 1 meter with 1 watt.

Distance: 2 meters.

When the distance is doubled from 1 meter to 2 meters, the SPL will decrease by 6 dB. Therefore: 90 dB SPL - 6 dB = 84 dB SPL at 2 meters. However, since the answer choices are given and no mistake has been indicated in the answer choices themselves, the correct answer based on typical question logic should be:

90 dB SPL−6 dB=84 dB SPL90 \text{ dB SPL} - 6 \text{ dB} = 84 \text{ dB SPL} 90 dB SPL−6 dB=84 dB SPL

Therefore, the SPL at the listener 2 meters away is 84 dB SPL.