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Carl Young Carl Young

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CDCS　EXIN EPI Certified Data Centre Specialistテスト問題集、CDCS問題集参考書

当社EXINのCDCSガイド急流は、過去の試験論文と業界での人気の傾向に基づいて、厳密な分析と要約を行っており、改訂および更新されています。 CDCS試験問題により、洗練された概念が簡素化されました。このソフトウェアは、さまざまな自己学習および自己評価機能を強化して、学習結果を確認します。 CDCSテストトレントのソフトウェアは、統計レポート機能を提供し、学生が脆弱なリンクを見つけて対処するのに役立ちます。 CDCS試験問題のこのバージョンを使用すると、試験に簡単に合格することができます。

いまEXINのCDCS認定試験に関連する優れた資料を探すのに苦悩しているのですか。もうこれ以上悩む必要がないですよ。ここにはあなたが最も欲しいものがありますから。受験生の皆さんの要望に答えるように、GoShikenはCDCS認定試験を受験する人々のために特に効率のあがる勉強法を開発しました。受験生の皆さんはほとんど仕事しながら試験の準備をしているのですから、大変でしょう。試験に準備するときにはあまり多くの時間を無駄にすることを避けるように、GoShikenは短時間の勉強をするだけで試験に合格することができるCDCS問題集が用意されています。この問題集には実際の試験に出る可能性のあるすべての問題が含まれています。従って、この問題集を真面目に学ぶ限り、CDCS認定試験に合格するのは難しいことではありません。

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EXIN EPI Certified Data Centre Specialist 認定 CDCS 試験問題 (Q45-Q50):

質問 # 45
What should be considered when installing overhead data cabling?

A. To maintain minimum separation from power and ensure that the fire detection and suppression systems are not hindered.
B. Copper data cabling should not be placed in metal cable trays.
C. Optical fiber cabling should always be positioned on top of the copper cabling in the same cable tray to avoid damage to the sensitive optical fiber.
D. All cabling should make sharp bends directly into the rack to avoid usage of additional space and blocking the airflow on top of the rack.

正解：A

解説：
When installing overhead data cabling, it's crucial to maintain minimum separation from power cables to prevent electromagnetic interference. Additionally, cabling should be arranged so that it does not obstruct fire detection and suppression systems, allowing for proper sensor function and suppression agent dispersion in the event of a fire.
Detailed Explanation:
Separation between power and data cabling minimizes the risk of interference and helps ensure compliance with standards for signal integrity. Proper placement relative to fire suppression systems ensures that any smoke or heat can be effectively detected, and suppression agents can be evenly distributed without obstruction from cabling.
EPI Data Center Specialist References:
EPI guidelines emphasize maintaining adequate separation between power and data cables for safety and performance and ensuring cabling does not interfere with essential safety systems in data centers.

質問 # 46
The logical overview of the data center looks as pictured. To what TIA-942 Rating is this design made based on electrical only?

A. Rating - 2
B. Rating - 3
C. Rating - 1
D. Rating - 4

正解：D

解説：
The electrical design shown in the diagrams represents a TIA-942 Rating-4 configuration. This design includes full redundancy and fault tolerance, as demonstrated by the dual power distribution paths from the utility supply to the critical loads. Each power distribution path is equipped with its own UPS, ensuring that the ICT equipment and mechanical equipment have uninterrupted power in case of any single point of failure.
Detailed Explanation:
A Rating-4 data center requires two independent power paths that are fully redundant and capable of supporting the load independently. In the diagrams:
There are dual feeds from the utility supply, each going through separate transfer switches and power distribution paths.
Both paths have backup sources (+1) and serve critical components through separate UPS systems, providing a completely redundant setup.
The design also includes redundant paths to the mechanical equipment and ICT equipment, which further indicates the fault-tolerant characteristics of a Rating-4 infrastructure.
This setup allows for concurrent maintainability and ensures that no single failure in power distribution or UPS can impact the data center's operation, which is characteristic of the highest Tier/Rated-4 classification.
EPI Data Center Specialist References:
EPI guidelines confirm that TIA-942 Rating-4 requires full redundancy and fault tolerance for electrical infrastructure, ensuring continuous operation even during maintenance or failure events. This design meets all those requirements, thus aligning with Rating-4 standards.

質問 # 47
What mainly affects the cooling capacity of a raised floor tile?

A. Percentage of the surface opening, obstruction of the supporting construction, pressure under the raised floor, damper construction
B. Relative humidity in the computer room, temperature of the cold air, pressure under the raised floor, construction material of the tile
C. Type of ICT equipment, location of the air conditioner, pressure under the raised floor, allowable temperature in the hot aisle
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：A

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 # 48
Management has requested a 15-minute battery bank assuming full load on the UPS. The UPS vendor has provided the following specifications of the UPS:
* Rated power: 30 kVA
* Rectifier input voltage: 400 V/3 phase
* Rectifier input power factor: 0.8
* Battery rated voltage: 384 V
* Number of cells: 192
* End of discharge voltage: 308 V
* Inverter output voltage: 400 V/3 phase
* Inverter output power factor: 0.8
What information is missing to perform the battery calculation?

A. Load imbalance on the phases
B. Available battery charging current
C. Inverter efficiency
D. UPS efficiency

正解：D

解説：
To determine the required capacity of the battery bank for the 15-minute runtime at full load, one must know the total power requirement that the battery bank must supply. The specifications provided include most of the necessary details, such as rated power, input voltage, battery voltage, and discharge voltage. However, one critical piece of information is missing: the UPS efficiency.
Detailed Explanation:
In a data center UPS system, the battery bank is designed to supply power for a set duration when there is an input power failure. The UPS efficiency affects the actual power the UPS can deliver to the load compared to the power it draws from the batteries. The efficiency factor is necessary to accurately calculate the required capacity of the battery bank since it determines how much input power is needed from the batteries to supply the load at full capacity. The formula typically used to determine battery capacity involves factoring in UPS efficiency, as it allows you to understand the losses within the UPS system.
If UPS efficiency is not considered, there would be an inaccurate estimation of the actual power needed from the batteries. For instance, if a UPS has 90% efficiency, only 90% of the power drawn from the batteries reaches the load. Without knowing this efficiency, it is not possible to calculate the battery bank size accurately, as you cannot accurately estimate the losses within the UPS itself.
EPI Data Center Specialist References:
According to EPI Data Center Specialist training, understanding the UPS efficiency is essential for battery sizing. Without it, the calculations could lead to either undersizing or oversizing the battery bank, which affects both reliability and cost-effectiveness of the UPS system. The EPI Data Center Specialist course emphasizes that battery sizing must account for all losses within the UPS system, with efficiency being a primary factor in these calculations.

質問 # 49
Do you need to consider blast protection when designing a data center?

A. Yes, if the data center is a potential target or the building is located within the vicinity of (close by) a potential target.
B. No, blast protection is not a requirement of ANSI/TIA-942.
C. No, there is no reason for implementing blast protection as nobody can predict the impact of a bomb explosion.
D. Yes, blast protection is a requirement of ANSI/TIA-942.

正解：A

解説：
Blast protection should be considered if the data center or its location is a potential target or is near high-risk areas. Blast protection measures can protect both personnel and infrastructure from potential explosion impacts, which could be essential in areas with heightened security risks.
Detailed Explanation:
In areas where there may be risks of terrorist attacks or explosions due to nearby high-risk facilities, implementing blast protection measures helps safeguard the data center's infrastructure. These measures can include reinforced walls, blast-resistant windows, and secure entryways designed to withstand explosive forces.
EPI Data Center Specialist References:
While not specifically mandated by ANSI/TIA-942, EPI training advises considering local risk factors, including proximity to potential targets, when evaluating the need for blast protection. This approach is aligned with risk assessment and mitigation practices to ensure facility security.

質問 # 50
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GoShikenの専門家チームが君の需要を満たすために自分の経験と知識を利用してEXINのCDCS認定試験対策模擬テスト問題集が研究しました。模擬テスト問題集と真実の試験問題がよく似ています。一目でわかる最新の出題傾向でわかりやすい解説と充実の補充問題があります。

CDCS専門試験: https://www.goshiken.com/EXIN/CDCS-mondaishu.html

EXIN CDCS資格認定だからあなたの復習プロセスはあなたの理解を深くさせます、EXIN CDCS資格認定正確の選択は努力より大切なことです、我々GoShikenのITエリートと我々のEXINのCDCS試験のソフトに満足するお客様は我々に自信を持たせます、EXIN CDCS資格認定当社の認定トレーニングの材料は、すぐに入手できます、EXIN CDCS資格認定だから、人材需要は迫っています、これは、今後のCDCSテストのために有効な試験準備資料を購入する良い方法です、CDCS試験は、良い選択です。

Ｊ.Ｊ、ゆっくり休めよ、いったんわかした水であれば、飲んでも腹をこわさないCDCSと言う人がいますがそんな話、読んだことも聞いたこともない、だからあなたの復習プロセスはあなたの理解を深くさせます、正確の選択は努力より大切なことです。

CDCS試験の準備方法｜高品質なCDCS資格認定試験｜ハイパスレートのEXIN EPI Certified Data Centre Specialist専門試験

我々GoShikenのITエリートと我々のEXINのCDCS試験のソフトに満足するお客様は我々に自信を持たせます、当社の認定トレーニングの材料は、すぐに入手できます、だから、人材需要は迫っています。

Carl Young Carl Young

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