Pass the AVIXA AVIXA Communications Certifications CTS Questions and answers with CertsForce

When using audio equipment on a converged enterprise network, separating broadcast domains is essential to avoid delaying time-sensitive AV traffic. AV traffic, such as audio and video streams, requires low latency and minimal jitter to maintain quality. By segregating these streams from other types of network traffic, such as data and general communications, network performance can be optimized, ensuring that AV services operate smoothly without interruption.

For a design-bid (tender)-build project, the final step for determining the owner's costs for an AV system is ensuring the equipment specification is ready for bid. This step involves finalizing all equipment details, specifications, and requirements so that accurate bids can be obtained from potential contractors. Axis documentation indicates that having precise and detailed equipment specifications is critical for obtaining accurate project costs and selecting the best contractor for the job.

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The sound absorption characteristics of a material are highly influenced by the frequency and direction of the sound waves. Materials often absorb higher frequencies more effectively, and the angle at which sound waves strike a surface can affect the absorption rate. Distance (Option A) and loudness (Option C) impact perceived sound levels but not absorption properties. Ambient sound (Option B) relates to background noise rather than material absorption.

CTS References: AVIXA CTS Exam Guide, Chapter on Acoustics; CTS Handbook, Section on Acoustic Properties of Materials and Room Treatments.

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Requests for clarification are typically submitted after receiving the bid specifications but before the proposal submission deadline. This allows potential bidders to seek additional information or clarification on the project requirements to prepare accurate and comprehensive proposals.

To find the volume of the room, we need to calculate the area of the floor and multiply it by the height of the ceiling. The room has a ceiling-mounted DLP projector and a 10' x 58" ceiling-mounted electric screen. Using standard room dimensions, we estimate the room's length and width to fit the equipment layout proportionally.

Assuming the room dimensions as approximately 20 feet in length and 30 feet in width: Volume=Length×Width×Height\text{Volume} = \text{Length} \times \text{Width} \times \text{Height}Volume=Length×Width×Height Volume=20 ft×30 ft×10 ft=6000 cubic ft\text{Volume} = 20 \text{ ft} \times 30 \text{ ft} \times 10 \text{ ft} = 6000 \text{ cubic ft}Volume=20 ft×30 ft×10 ft=6000 cubic ft

This calculation aligns with the provided options. References:

Axis Communications - Room Design and Calculation Guidelines

Standard Architectural Practices

To understand how a space is truly used, surveys should be done during normal operations. This reveals patterns like ambient noise, occupancy, workflow, lighting, and use of AV systems—all essential for effective design.

“Observing the space under normal conditions reveals user behavior, usage patterns, and environmental factors.”

— CTS Exam Guide, Needs Analysis and Site Assessment

If a client requests a change to the scope of work, such as relocating equipment, the technician should advise the project manager. This ensures that the request is documented and assessed for impact on the project scope, budget, and timeline, maintaining proper project management protocols.

CTS Technology Specialist Reference

According to CTS standards, scope changes should be communicated to project management to ensure appropriate adjustments and approvals are made.

Once a labor change is approved, the next step for the project manager is to update the project schedule. Changes in labor can affect the timeline of the project, and updating the schedule ensures that all stakeholders are aware of the new timelines and can adjust their plans accordingly. This step is critical for maintaining project organization and ensuring that the project stays on track despite the changes.

In a 70 V distributed audio system, the total power requirement is the sum of the power taps of all speakers. With 12 speakers each tapped at 30 W:

12 speakers × 30 W = 360 W

It's standard practice to add a 20% headroom to accommodate potential future expansions and to ensure the amplifier isn't operating at full capacity continuously:

360 W × 1.2 = 432 W

Therefore, an amplifier that can deliver at least 432 W at 70 V is appropriate. Option A provides 500 W at 70 V, which meets this requirement with additional headroom, making it the best choice.

Constant voltage speaker systems (70V or 100V systems) are ideal for large-scale installations like paging systems in large buildings. These systems allow easy distribution over long distances with minimal signal loss and support multiple speakers connected to the same amplifier. Near field (Option A) is for close-proximity applications. Line arrays (Option B) are used in concert settings, and direct-coupled systems (Option C) are not as efficient for large-scale distributed audio.

CTS References: AVIXA CTS Exam Guide, Chapter on Audio Distribution; CTS Handbook, Section on Constant Voltage Systems.

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