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我々Xhs1991では、あなたは一番優秀なEXIN　CDCS問題集を発見できます。我が社のサービスもいいです。購入した前、弊社はあなたが準備したいCDCS試験問題集のサンプルを無料に提供します。購入した後、一年間の無料サービス更新を提供します。EXIN　CDCS問題集に合格しないなら、180日内で全額返金します。あるいは、他の科目の試験を変えていいです。

EXIN CDCS 認定試験の出題範囲：

トピック	出題範囲
トピック 1	データセンターの設計と実装: このモジュールの試験では、データセンターの設計と実装を担当する Exin データセンタープロフェッショナルの知識を評価します。受験者は、スケーラビリティ、冗長性、セキュリティの考慮など、効率的なデータセンターレイアウトを作成するための重要な原則を学習します。
トピック 2	データセンターのライフサイクルと標準: 試験のこのセクションでは、データセンターの専門家のスキルを測定し、計画と設計から実装と廃止まで、データセンターのライフサイクルに関係するさまざまな段階をカバーします。
トピック 3	データセンターの環境配慮と効率: このセクションでは、データセンター運用における環境要因への対応と効率化の促進に関するデータセンター専門家の能力を評価します。データセンター管理者やエンジニアなどの対象者は、エネルギー効率、冷却管理、持続可能な実践を強化する対策を特定して実装する能力がテストされます。

EXIN EPI Certified Data Centre Specialist 認定 CDCS 試験問題 (Q44-Q49):

質問 # 44
In order to save energy, you are going to install an automated system to switch off lights. What should be taken into consideration when installing such a system?

A. Security guards should perform regular inspections verifying the system works.
B. At all times, the levels should allow for security cameras to function properly.
C. It is not advisable to use such a system since it will reduce the lifetime of LED lighting.
D. The system should not be based on motion detection as the lights might suddenly switch off while staff is still at work.

正解：B

質問 # 45
Which formula is correct?

A. Phase-to-Neutral Voltage = Phase-to-Neutral voltage * 1.732
B. Phase-to-Neutral Voltage = Phase-to-Phase voltage /1.732
C. Phase-to-Neutral Voltage = Phase-to-Phase voltage * 1.732
D. Phase-to-Neutral Voltage = (Phase-to-Phase voltage * 1.732) / Phase-to-Neutral Voltage

正解：B

解説：
The correct formula for calculating Phase-to-Neutral Voltage in a three-phase power system is Phase-to-Neutral Voltage = Phase-to-Phase Voltage / 1.732. This formula applies to balanced three-phase systems, where 1.732 (or √3) represents the relationship between line-to-line and line-to-neutral voltages.
Detailed Explanation:
In three-phase systems, Phase-to-Phase Voltage is higher than Phase-to-Neutral Voltage by a factor of √3. Dividing the phase-to-phase voltage by 1.732 gives the phase-to-neutral voltage, which is critical for understanding power distribution in three-phase electrical systems commonly found in data centers.
EPI Data Center Specialist References:
EPI electrical training highlights the importance of knowing these calculations for designing and maintaining balanced power systems, which are essential for stable and efficient data center operations.

質問 # 46
You are installing new copper cabling.
What is the advantage or disadvantage of choosing pre-terminated category 6 or 6A cabling?

A. Pre-terminated cabling makes ordering of the copper cables more complex, as you need to know in advance on which side the male or female connector needs to be located.
B. Pre-terminated cabling is already factory tested and saves installation time.
C. There is no advantage as most new copper cabling network designs are based on category 3 or 5E for horizontal cabling.
D. Pre-terminated cabling has a higher fire rating.

正解：B

解説：
Choosing pre-terminated category 6 or 6A cabling provides several advantages, primarily related to time savings and reliability. Since pre-terminated cables are factory tested, they ensure consistent quality and performance, reducing the need for additional testing during installation. This makes installation faster and more efficient, which can significantly reduce labor costs and deployment times.
Detailed Explanation:
Pre-terminated cabling systems are manufactured and tested in controlled environments, which ensures they meet industry standards for performance. This factory testing process minimizes the likelihood of faults, reducing the need for troubleshooting and retesting on-site. Moreover, pre-terminated solutions can help to streamline installations because they eliminate the need for on-site terminations, which can be time-consuming and require skilled labor.
This is especially beneficial for data centers, where rapid deployment and minimizing potential points of failure are critical to maintaining uptime. However, it is important to note that pre-terminated cables require accurate planning, as lengths and connector configurations must be predetermined.
EPI Data Center Specialist References:
According to EPI Data Center Specialist guidelines, pre-terminated cabling is advantageous in data center environments due to reduced installation time and enhanced reliability from factory testing. These attributes align with best practices for efficient data center management, where maintaining performance and minimizing downtime are priorities.

質問 # 47
A data center requires an audit to find out whether it conforms with ANSI/TIA-942 Rated-3 (concurrently maintainable).
Will the network architecture be part of this audit?

A. No, only the type of cabling used will be audited.
B. Yes, but only if the network administration does not comply with ANSI/TIA-606.
C. Yes, amongst other aspects, the network architecture should be Rated-3 compliant with the requirements of ANSI/TIA-942.
D. No, as concurrently maintainable only applies to electrical and mechanical (power and cooling).

正解：C

解説：
For a Rated-3 data center, network architecture is indeed a key component of the audit under ANSI/TIA-942. This rating requires concurrent maintainability across all systems, including telecommunications infrastructure. The network architecture must therefore meet specific redundancy and reliability standards to ensure uninterrupted operations during maintenance or failure of any single component.
Detailed Explanation:
Rated-3 requirements extend beyond electrical and mechanical systems to include network architecture. This ensures that telecommunications systems are also designed for concurrent maintainability, thus contributing to overall uptime and resilience.
EPI Data Center Specialist References:
EPI endorses comprehensive assessments for Rated-3 facilities, emphasizing that network systems must meet standards for redundancy and concurrent maintainability, which align with ANSI/TIA-942's holistic approach to data center reliability.

質問 # 48
Do you need to consider blast protection when designing a data center?

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

正解：B

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 # 49
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試験の準備をするためにXhs1991のEXINのCDCS試験トレーニング資料を買うのは冒険的行為と思ったとしたら、あなたの人生の全てが冒険なことになります。一番遠いところへ行った人はリスクを背負うことを恐れない人です。また、Xhs1991のEXINのCDCS試験トレーニング資料が信頼できるのは多くの受験生に証明されたものです。Xhs1991のEXINのCDCS試験トレーニング資料を利用したらきっと成功できますから、Xhs1991を選ばない理由はないです。

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