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[General] CDCS試験復習赤本、CDCS関連資料

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【General】 CDCS試験復習赤本、CDCS関連資料

Posted at yesterday 15:03      View：2 | Replies：0        Print      Only Author   [Copy Link] 1#
P.S.Xhs1991がGoogle Driveで共有している無料の2026 EXIN CDCSダンプ：https://drive.google.com/open?id=13IaSkzFuNaBWoE-5B11kAIAPLtvuezjL
我々社のEXIN　CDCS認定試験問題集の合格率は高いのでほとんどの受験生はCDCS認定試験に合格するのを保証します。もしあなたはEXIN　CDCS試験問題集に十分な注意を払って、CDCS試験の解答を覚えていれば、CDCS認定試験の成功は明らかになりました。EXIN　CDCS模擬問題集で実際の質問と正確の解答に疑問があれば、無料の練習問題集サンプルをダウンロードし、チェックしてください。
EXIN CDCS 認定試験の出題範囲：
トピック出題範囲
トピック 1
  • Data Centre Life Cycle and Standards: This section of the exam measures the skills of data center professionals and covers the various stages involved in the life cycle of a data center, from planning and design to implementation and decommissioning.
トピック 2
  • Designing and Implementing a Data Centre: In this module, the exam assesses the knowledge of Exin data center professionals tasked with the design and implementation of data centers. Candidates will learn the key principles of creating an efficient data center layout, including considerations for scalability, redundancy, and security.
トピック 3
  • Data Centre Environmental Considerations and Efficiency: This section evaluates the proficiency of data center professionals in addressing environmental factors and promoting efficiency within data center operations. The target audience, including data center managers and engineers, will be tested on their ability to identify and implement measures that enhance energy efficiency, cooling management, and sustainable practices.

一番優秀なCDCS試験復習赤本 & 合格スムーズCDCS関連資料 | ユニークなCDCS対応内容Xhs1991は、説明責任を持ってこれらの試験問題を作成したことで有名です。 CDCS試験の準備をする代わりに、より高い給料または受給資格を取得できる可能性が高くなることを理解しています。当社のCDCS練習資料は当社の責任会社によって作成されているため、他の多くのメリットも得られます。参考のためにCDCS試験問題の無料デモを提供し、専門家が自由に作成できる場合はCDCS学習ガイドの新しい更新をお送りします。私たちが行うすべてと約束はあなたの視点にあります。
EXIN EPI Certified Data Centre Specialist 認定 CDCS 試験問題 (Q104-Q109):質問 # 104
What precaution shall be taken for cabling leading into an equipment rack when a data center is in a seismic-prone area?
  • A. Cables should be replaced by busbar trunking.
  • B. Cables can be organized in any way as it is not important.
  • C. Cables should be loosely organized to allow for movement and be latched at the connectors.
  • D. Cables shall be tightly organized to the rack and trays to avoid movement.
正解：D
解説：
In seismic-prone areas, cables should be tightly secured to racks and cable trays to minimize movement during seismic activity. Properly securing the cables prevents them from being damaged due to excessive motion, which could lead to outages or damage to connected equipment.
Detailed Explanation:
Loose cables can be vulnerable to shaking or sudden jolts during an earthquake, increasing the risk of disconnection or damage. By tightly organizing and securing cables, you ensure they remain in place, even during significant movement, thereby maintaining connection integrity and reducing the risk of physical damage.
EPI Data Center Specialist References:
EPI training includes considerations for data centers in seismic zones, advising that cables be firmly anchored to support structures to reduce movement and mitigate potential damage during seismic events.

質問 # 105
What is the main reason to install Earth Leakage protection?
  • A. Protection against lightning strikes
  • B. Improvement of the data center grounding/earthing system
  • C. Protection of ICT equipment against high-frequency noise currents
  • D. Protection of human lives
正解：D
解説：
Earth Leakage Protection is primarily installed to protect human lives by detecting and disconnecting power when a fault current flows to the ground. This type of protection is essential to avoid electrical shock hazards that could occur when insulation fails, or equipment is improperly grounded.
Detailed Explanation:
Earth leakage currents can occur due to insulation faults or accidental contact with live parts. Earth Leakage Protection systems, such as Residual Current Devices (RCDs), quickly detect these faults and disconnect the circuit to prevent harm to personnel. This is especially crucial in environments like data centers where high-powered equipment is continuously running and any electrical fault can pose significant safety risks.
EPI Data Center Specialist References:
EPI emphasizes that human safety is paramount in data center operations. Proper grounding and leakage protection are fundamental safety measures, and EPI guidelines align with this focus, underscoring the importance of protecting personnel from electrical hazards through appropriate safety systems.

質問 # 106
A computer room needs to be fitted out with a gas-based fire suppression system. The computer room will be a high-density data center with about 30% of the racks being closed circuit cooling blade-center racks.
Should the supplier of the fire suppression system be informed on the design of the racks?
  • A. Only when the racks might block access to the fire panel.
  • B. Yes, the design of the racks has an influence on the fire suppression system design.
  • C. Only when the rack height obstructs a potential fire suppression release point.
  • D. No, cooling and design of racks have no influence on the fire suppression system design.
正解：B
解説：
The design and configuration of racks, particularly high-density and closed-circuit cooling racks, directly impact the fire suppression system design. Closed-circuit cooling racks, like blade-center racks, can affect airflow and potentially trap heat, influencing how fire suppression agents are distributed within the space. Therefore, it is essential to inform the fire suppression system supplier about the rack design to ensure effective coverage and proper agent distribution.
Detailed Explanation:
High-density racks can change how smoke and heat travel, which in turn affects fire detection and suppression. Closed racks with built-in cooling can isolate airflow, requiring adjustments in fire suppression design to ensure that suppression agents reach all necessary areas, including within enclosed spaces. The supplier may need to account for these factors to ensure proper protection coverage.
EPI Data Center Specialist References:
The EPI Data Center Specialist training underscores that fire suppression systems must be tailored to the specific environmental characteristics of the data center. The design of racks, particularly high-density configurations, should always be considered to ensure that suppression agents can effectively control a fire, even in contained rack spaces.

質問 # 107
What mainly affects the cooling capacity of a raised floor tile?
  • A. Type of ICT equipment, location of the air conditioner, pressure under the raised floor, allowable temperature in the hot aisle
  • B. Relative humidity in the computer room, temperature of the cold air, pressure under the raised floor, construction material of the tile
  • C. Percentage of the surface opening, obstruction of the supporting construction, pressure under the raised floor, damper construction
  • D. Percentage of the surface opening, airflow direction of the ICT equipment, temperature difference between the air intake and air exhaust of the ICT equipment, construction material of the tile
正解：C
解説：
The cooling capacity of a raised floor tile is primarily influenced by the percentage of surface opening, the obstruction caused by the supporting construction, the pressure under the raised floor, and the damper construction. These factors dictate how much airflow can pass through the tile and how effectively cool air is distributed to the equipment in the data center.
Detailed Explanation:
The percentage of surface opening on a floor tile affects how much air can flow through, with larger openings allowing more airflow. Supporting structures beneath the floor can obstruct airflow, reducing cooling efficiency. Pressure under the raised floor impacts the velocity and volume of air that moves through the tile. Additionally, if dampers are installed, they control the airflow rate, which can be adjusted to meet specific cooling needs for the area.
EPI Data Center Specialist References:
EPI guidance on airflow management under raised floors emphasizes these factors as critical for effective cooling, especially in high-density areas. Ensuring unobstructed and adequate airflow helps maintain consistent cooling across equipment.

質問 # 108
The pipes of a VESDA smoke detection system are installed at the air intake of the air conditioner inside the computer room.
Is this a good practice from an early smoke detection point of view?
  • A. No, it will give a longer reaction time for the smoke detection system and there might also be bypass airflow.
  • B. Yes, as this reduces the amount of piping to be installed in the data center, as all air will go through the air conditioner.
  • C. It depends on the type of gas-based fire suppression which will be installed.
  • D. No, the piping should be installed at the air exhaust of the air conditioner, as there can also be a fire inside the air conditioner itself.
正解：A
解説：
For optimal early smoke detection in a data center, it is crucial that the Very Early Smoke Detection Apparatus (VESDA) system be installed at locations where smoke will be detected as soon as it appears. Positioning the VESDA pipes at the air intake of the air conditioner inside the computer room is not ideal. This placement could result in a delayed detection response and the potential for bypass airflow to occur, which would impede the system's ability to detect smoke effectively.
Detailed Explanation:
When VESDA pipes are installed at the air intake, the detection system relies on the smoke to be drawn into the air conditioning unit before detection can occur. This setup increases the reaction time as the smoke has to travel through the intake and get processed by the air conditioner. Furthermore, bypass airflow-a phenomenon where not all the air containing smoke particles passes through the VESDA pipes-could also delay or even prevent the system from detecting smoke early.
Ideally, VESDA pipes should be positioned where smoke is likely to accumulate first, such as near the ceiling or in the return airflow path to detect smoke at the earliest possible stage. This ensures that the detection system can quickly trigger alarms, providing more time to address potential fire hazards.
EPI Data Center Specialist References:
EPI Data Center Specialist training highlights that smoke detection should prioritize early response capabilities to maximize safety. The preferred installation for VESDA pipes is generally at points where smoke would naturally accumulate, rather than relying on air conditioning intakes where airflow can vary and delay detection. In their course materials, EPI emphasizes minimizing reaction time and reducing the impact of airflow dynamics on smoke detection efficiency.

質問 # 109
......
Xhs1991はEXINのCDCS認定試験に便利なサービスを提供するサイトで、従来の試験によってXhs1991 が今年のEXINのCDCS認定試験を予測してもっとも真実に近い問題集を研究し続けます。
CDCS関連資料: https://www.xhs1991.com/CDCS.html
ちなみに、Xhs1991 CDCSの一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=13IaSkzFuNaBWoE-5B11kAIAPLtvuezjL
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