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効果的CDCS |真実的なCDCS受験対策試験 |試験の準備方法EXIN EPI Certified Data Centre Specialist日本語pdf問題

人生は勝ち負けじゃない、負けたって言わない人が勝ちなのよ。近年EXIN　CDCS認定試験の難度で大方の受験生は試験に合格しなかったのに面して、勇者のようにこのチャレンジをやってますか。それで、我々社のEXIN　CDCS無料の試験問題集サンプルを参考します。自分の相応しい復習問題集バージョン（PDF版、ソフト版を、オンライン版）を選んで、ただ学習教材を勉強し、正確の答えを覚えるだけ、EXIN　CDCS資格認定試験に一度で合格できます。

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

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.

トピック 3

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.

>> CDCS受験対策 <<

試験の準備方法-ハイパスレートのCDCS受験対策試験-便利なCDCS日本語pdf問題

現在多くの会社では、特別なGAQM、EMC、ISC認証などを持っているなら、高い給料が得られています。我々の提供するCDCS問題集はあなたに試験に順調に合格することができます。試験に参加する前に、我々の模擬問題集CDCS資料が必要です。この問題集を選択したら、あなたは100％試験に合格することができます。

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

質問 # 45
Is it allowed to make design changes during the implementation phase?

A. No, after a design freeze no further changes are allowed.
B. Any change is fine as long as it is within the scope of the project.
C. Yes, but only when time to implement is not exceeded.
D. Only when there is a strong business and/or technical justification.

正解：D

解説：
Design changes during the implementation phase are generally allowed only when there is a strong business and/or technical justification. Changes at this stage can lead to delays, increased costs, or compromise design integrity. Thus, a rigorous assessment is required to ensure any modifications are essential and provide clear benefits or address critical issues.
Detailed Explanation:
Changes post-design freeze should be minimized to avoid scope creep and additional costs. However, if a technical issue arises that would affect operational goals, or a business need warrants modification, justified changes are permissible, following an impact assessment and approval process.
EPI Data Center Specialist References:
EPI project management guidelines recommend a controlled change management process during implementation, allowing changes only when they align with critical objectives or address unforeseen issues that affect the project's success.

質問 # 46
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. Inverter efficiency
C. UPS efficiency
D. Available battery charging current

正解：C

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 # 47
The temperature in the computer room is being increased from 18°C/64°F to 27°C/81°F.
What is the impact, if any, on the amount of gas required to suppress a fire assuming the gas is a Halocarbon?

A. The amount of gas required will not change
B. The change to the amount of gas cannot be determined without knowing the change in humidity as well
C. The amount of gas required will be lower
D. The amount of gas required will be higher

正解：C

解説：
With Halocarbon fire suppression systems, as the temperature increases, the amount of gas required for effective suppression decreases. This is because Halocarbon agents are stored as a liquid and discharge as a gas, expanding more at higher temperatures. As a result, less agent is needed at higher room temperatures to achieve the desired concentration for fire suppression.
Detailed Explanation:
Halocarbons rely on specific volumetric concentrations to suppress fires. Higher temperatures cause the agent to expand more rapidly, effectively filling the protected area with less agent needed to reach the required concentration. This is in contrast to some other gases, where temperature changes might not have the same effect on discharge quantities.
EPI Data Center Specialist References:
EPI data center training on fire suppression indicates that understanding the physical properties of agents like Halocarbons is key for correct system sizing. As the temperature rises, the gas expands more readily, thus requiring adjustments in the amount needed for effective coverage.

質問 # 48
What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?

A. It can only be used in computer rooms where you have sufficient positive pressure.
B. It can only be used in computer rooms which have sufficient air changes per hour.
C. It can only be used in non-continuous occupied areas.
D. The gas containers need to be close to the hazard area.

正解：C

解説：
A hypoxic-based fire suppression system works by reducing the oxygen level in a room to below what is necessary to sustain combustion. This makes it effective in fire prevention, but it is not suitable for continuous occupancy by personnel. Low oxygen levels can cause discomfort or even health risks for people spending extended periods in the space. Therefore, these systems are typically deployed in areas where continuous human occupancy is not required, such as storage rooms or data halls with limited personnel access.
Detailed Explanation:
Hypoxic fire suppression systems lower oxygen levels to around 15-16%, which is safe for short periods but not sustainable for continuous occupancy without risk to health. Data center environments where staff need to spend long periods monitoring and maintaining equipment would need alternative systems, like gas-based suppression that allows for safe evacuation rather than oxygen reduction.
EPI Data Center Specialist References:
The EPI Data Center Specialist curriculum emphasizes that fire suppression systems must be chosen based on occupancy requirements. Hypoxic systems are specifically noted as unsuitable for spaces requiring continuous human presence due to the low oxygen environment they create.

質問 # 49
Three data centers are benchmarked on facilities energy efficiency.
Data center A has achieved a PUE of 2.45.
Data center B has achieved a PUE of 1.20.
Data center C has achieved a PUE of 1.90.
Which of the data centers is operating at the highest facility efficiency?

A. PUE does not indicate efficiency
B. Data center C
C. Data center A
D. Data center B

正解：C

解説：
A Power Usage Effectiveness (PUE) of 1.20 (achieved by Data Center B) indicates the highest facility efficiency among the three data centers. A lower PUE value signifies better energy efficiency, as it means that a greater proportion of the total energy consumed is used directly for IT equipment rather than for cooling, lighting, or other facility needs.
Detailed Explanation:
PUE is calculated as the ratio of total facility energy to IT equipment energy. A PUE close to 1.0 suggests that almost all the energy is dedicated to computing processes, with minimal overhead. With PUE values of 2.45, 1.20, and 1.90, Data Center B (1.20) operates most efficiently by devoting a higher percentage of its total energy to IT equipment.
EPI Data Center Specialist References:
The EPI curriculum emphasizes PUE as a key metric for data center efficiency, with lower values representing better performance. Achieving a PUE near 1.0 aligns with industry best practices for energy-efficient data center design and operation.

質問 # 50
......

おそらく、あなたはゲームをするのに多くの時間を無駄にしたでしょう。関係ありません。変更するのに遅すぎることはありません。過去を後悔する意味はありません。 CDCS試験資料は、希望するCDCS認定を取得するのに役立ちます。 CDCS学習教材を学習した後、あなたは大きく変わります。また、あなたは人生について前向きな見方をします。全体として、すべての幻想を捨て、勇敢に現実に立ち向かいます。 CDCS模擬試験が最高のアシスタントになります。あなたは世界で最高でユニークです。新たな挑戦に直面するだけで自信を持ってください！

CDCS日本語pdf問題: https://www.jptestking.com/CDCS-exam.html

Ned Gray Ned Gray

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