2024年最新のCTS問題集の無料PDFゲットせよ！最近更新された問題
CTS認定試験問題集には114練習テスト問題
Axis Communications CTS 認定試験の出題範囲：
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質問 # 50
Which of the following testing metrics would BEST be applied towards testing a distributed audio system for proper speaker wattages and cabling?
- A. High-end frequency response 10 kHz and above
- B. Audio uniformity in the range of intelligible speech 100 Hz - 2 kHz
- C. Audio uniformity across the entire spectrum of humanhearing60 Hz - 20 kHz
- D. Low-end system response 60 Hz and below
正解：B
解説：
When testing a distributed audio system, focusing on the audio uniformity in the range of intelligible speech (100 Hz - 2 kHz) is most important. This range is crucial for ensuring that speech is clear and understandable, which is often the primary function of distributed audio systems in environments like schools, offices, and public spaces. Ensuring uniform sound distribution within this frequency range helps achieve consistent audio quality and speech intelligibility across the covered area.
質問 # 51
What is the standard impedance of a DMX cable?
- A. 150 Q
- B. 75 Q
- C. 110 Q
- D. 55 Q
正解：C
解説：
The standard impedance for a DMX (Digital Multiplex) cable is 110 ohms (). DMX is a standard for digital communication networks commonly used to control stage lighting and effects. The 110-ohm impedance is crucial for ensuring the integrity and reliability of the digital signal over long distances. Using cables with the correct impedance prevents signal reflections and ensures proper transmission of the DMX data without errors, maintaining the synchronization and performance of lighting systems.
質問 # 52
Your client has requested a 50inch monitor be mounted on the south wail of this boardroom. Which two recessed lights will need to be separated into the r own zone in order to turn them off when the monitor is on?
- A. C
- B. B.
- C. A
- D. D
正解：D
解説：
For mounting a 50-inch monitor on the south wall of the boardroom, recessed lights labeled as D will need to be separated into their own zone to turn them off when the monitor is on. This will prevent glare and reflections on the screen, ensuring a clear and visible display. Axis Technology Specialist documentation supports the necessity of proper lighting control in AV installations to optimize viewing conditions.
質問 # 53
Project documentation states the system must logically Isolate control and media networks. What piece of network equipment should be used?
- A. managed switch
- B. router
- C. access point
- D. unmanaged switch
正解：A
解説：
A managed switch is essential for logically isolating control and media networks because it allows for advanced network configurations such as VLANs (Virtual Local Area Networks). VLANs enable the segmentation of a network into separate, isolated sub-networks, ensuring that control traffic and media traffic do not interfere with each other. This isolation improves network performance, security, and manageability.
Managed switches provide the necessary features to implement and manage these configurations effectively.
質問 # 54
After there is an approved labor change to a project, what should the project manager do NEXT?
- A. order the equipment
- B. inform the purchasing department
- C. issue an invoice for the change
- D. update the schedule
正解：D
解説：
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.
質問 # 55
An application requires Its equipment to be operational 24 hours a day and the owner considers the system mission critical. What type of warranty would be BEST for the equipment?
- A. implied warranty
- B. advanced replacement warranty
- C. limited warranty
- D. manufacturer's factory warranty
正解：B
解説：
For a system that is mission-critical and requires 24-hour operation, an advanced replacement warranty is the best option. This type of warranty ensures that if a piece of equipment fails, a replacement is shipped immediately, often before the defective unit is returned. This minimizes downtime and ensures that the system remains operational, which is crucial for mission-critical applications.
References:
* Axis Communications - Warranty and Service Options
* Industry Standards for Critical Systems Maintenance
質問 # 56
Which kind of drawing should a technician refer to in order to determine how to hang a loudspeaker line array?
- A. section
- B. detail
- C. reflected ceiling plan
- D. elevation
正解：B
解説：
A detail drawing provides specific, comprehensive information about particular elements of a project, such as how to hang a loudspeaker line array. These drawings include precise measurements, materials, and installation instructions, allowing technicians to understand the exact requirements and procedures for mounting the equipment. Detail drawings ensure that all aspects of the installation are clearly communicated and followed, preventing errors and ensuring a safe and effective setup.
質問 # 57
A teacher asks about obtaining portable, powered speakers they can use for rehearsals in a variety of locations around their school. What information MUST be obtained to recommend an appropriate solution?
- A. the height of the ceiling
- B. the amount of experience the teacher has with audio equipment
- C. the users of the audio equipment
- D. the source(s) of the audio
正解：D
解説：
To ensure a functioning audio solution for staff meetings, the most important question to ask is whether there are any remote participants. This information is crucial because it affects the system's requirements for microphones, speakers, and possibly video conferencing capabilities. Ensuring that the system can effectively support remote participation will lead to better integration and a more effective communication setup. Axis Technology Specialist documentation highlights the necessity of considering remote participants to provide a comprehensive audio-visual solution that meets all user needs.
質問 # 58
Which type of contract involves ongoing support for an AV system, regardless of the age of the facility or who did the initial installation?
- A. manufacturer warranty
- B. service agreement
- C. system warranty
- D. preventive maintenance
正解：B
解説：
A service agreement involves ongoing support for an AV system, regardless of the age of the facility or who did the initial installation. This type of contract ensures that the AV system is maintained and serviced regularly, providing long-term support and upkeep. Axis documentation outlines service agreements as essential for ensuring the continued reliability and performance of AV systems, providing clients with peace of mind and consistent technical support.
質問 # 59
Which frequencies are amplified by a subwoofer?
- A. mid-low
- B. lowest
- C. mid-high
- D. highest
正解：B
解説：
Subwoofers are designed to amplify the lowest frequencies, typically ranging from about 20 Hz to 200 Hz.
These low-frequency sounds are crucial for producing deep bass tones in audio systems, enhancing the overall listening experience by providing a richer and fuller sound.
質問 # 60
What PRIMARY concern should the sales representative have had during the site survey of thisroom?
- A. length of cable runs
- B. combination of fluorescent and Incandescent lighting
- C. ceiling clearance for the projector lift
- D. room orientation
正解：C
解説：
The primary concern for the sales representative during the site survey should be the ceiling clearance for the projector lift. Ensuring that there is sufficient space for the projector lift to operate without obstruction is crucial for proper installation and operation. Inadequate clearance can lead to difficulties in mounting and deploying the projector, potentially compromising the projection quality and system functionality.
Additionally, it is important to verify that the projector can be positioned at the correct height and angle to achieve the desired image size and alignment.
質問 # 61
An event planner for a banquet surrounding a swimming pool has requested that the pool be lit in the client's colors using underwater lighting. What does the technician need to consider?
- A. the ability to physically secure the fixtures underwater
- B. whether the installing technicians are PADI certified
- C. access to a grounded power supply
- D. the IP rating of the fixtures
正解：D
解説：
When installing underwater lighting in a swimming pool to match a client's colors, the technician needs to consider the IP rating of the fixtures. The IP rating indicates the level of protection the fixtures have against water and dust. For underwater lighting, it is crucial to use fixtures with a high IP rating (typically IP68) to ensure they are fully waterproof and safe to operate underwater. Axis Technology Specialist documentation emphasizes the importance of selecting appropriately rated equipment for specific environmental conditions to ensure safety and functionality.
質問 # 62
Assuming that the speakers in the picture on the LEFT are 8 Q drivers, what is the impedance of the speaker system on the left?
- A. 2Q
- B. 4Q
- C. 16 Q
- D. 8Q
正解：A
解説：
Assuming the speakers on the left are 8drivers and they are connected in parallel, the total impedanceZtZ_tZtcan be calculated using the formula for parallel resistance:
Zt1=Z11+Z21For two 8 speakers in parallel:1Zt=18+18=28=14\frac{1}{Z_t} = \frac{1}{8} + \frac{1}{8} =
\frac{2}{8} = \frac{1}{4}Zt1=81+81=82=41Therefore,Zt=4Z_t = 4Zt=4If the wiring in the diagram shows two pairs of 8 speakers connected in parallel, the total impedance is 4 for each pair, and if these pairs are then connected in parallel again, the final impedance is:1Zt=14+14=24=12\frac{1}{Z_t} = \frac{1}{4} +
\frac{1}{4} = \frac{2}{4} = \frac{1}{2}Zt1=41+41=42=21Thus, the total impedance is 2.References:
* Axis Communications - Audio System Design
* Basic Electrical Engineering Textbooks
質問 # 63
To help end users remember key points of the training, the training documentation should include
- A. equipment datasheets.
- B. a customized quick start guide.
- C. user manuals for each piece of equipment.
- D. instructions for maintaining system input devices.
正解：B
解説：
A customized quick start guide is particularly useful for helping end users remember key points of the training.
These guides provide concise, easy-to-follow instructions tailored to the specific system and user needs, highlighting the most important operational steps and features. This helps users quickly familiarize themselves with the system and perform essential tasks without having to refer to extensive manuals. Including visual aids, such as diagrams and screenshots, further enhances the effectiveness of the quick start guide.
質問 # 64
Assuming that the screen and projector are both Ethernet controllable devices, where does the control system for the AV solution need to exist?
- A. in a dedicated rack in the room
- B. above the projector, plugged into the serial port on the projector
- C. connected to the network
- D. in the rear projection room
正解：C
解説：
The control system for the AV solution, assuming both the screen and projector are Ethernet controllable devices, needs to be connected to the network. This allows for centralized control, remote access, and management of the AV devices, ensuring seamless integration and operation. Axis documentation emphasizes the importance of network connectivity for managing Ethernet-enabled AV equipment effectively.
質問 # 65
Based on this image, what is the aspect ratio for WUXGA?
- A. 2.35:1
- B. 1.78:1
- C. 1.85:1
- D. 1.6:1
正解：D
解説：
WUXGA stands for Wide Ultra Extended Graphics Array and has a resolution of 1920 x 1200 pixels. To determine the aspect ratio, we divide the width by the height:
=1.6:1\text{Aspect Ratio} = \frac{1920}{1200} = 1.6:1Aspect Ratio=12001920=1.6:1 Therefore, the aspect ratio for WUXGA is 1.6:1. This aspect ratio is common for widescreen monitors and provides a wider display format compared to traditional 4:3 screens, enhancing the viewing experience for multimedia content.
質問 # 66
A saeen is 144 in (3658 mm) wide and the throw ratio is 2.3:1. How far from the screen should the projector be placed?
- A. 331 in (8413 mm)
- B. 446 in (11339 mm)
- C. 302 in (7681 mm)
- D. 288 In (7303 mm)
正解：A
解説：
The throw distance of a projector can be calculated using the throw ratio formula:Throw Distance=Throw Ratio×Screen Width\text{Throw Distance} = \text{Throw Ratio} \times
\text{Screen Width}Throw Distance=Throw Ratio×Screen Width
Given:Throw Ratio=2.3\text{Throw Ratio} = 2.3Throw Ratio=2.3Screen Width=144 in\text{Screen Width} =
144 \text{ in}Screen Width=144 in
Throw Distance=2.3×144\text{Throw Distance} = 2.3 \times
144Throw Distance=2.3×144Throw Distance=331.2 in\text{Throw Distance} = 331.2 \text{ in}Throw Distance=331.2 in Therefore, the projector should be placed approximately 331 inches (8413 mm) from the screen.
質問 # 67
When connecting two switches with multiple VLANs, which function should be setup in order to pass all the packets from one switch to the other?
- A. QoS (Quality of Service)
- B. SFP (Small Form-factorPluggable)
- C. trunk line
- D. multicast routing
正解：C
解説：
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.
質問 # 68
Knowledge of the overall room function as envisioned by the client provides a
- A. budget range for the project.
- B. list of major system components for the space.
- C. design concept to give to the architect.
- D. starting point for determining the space AV needs.
正解：D
解説：
Knowledge of the overall room function as envisioned by the client provides a starting point for determining the space AV needs. Understanding the client's intended use of the room helps in specifying the appropriate AV components and designing a system that meets their requirements. Axis Technology Specialist documentation highlights the importance of aligning AV system design with the client's vision to ensure the functionality and usability of the space.
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質問 # 69
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