VALID REAL CDCS EXAM - PASS4SURE CDCS STUDY MATERIALS

Valid Real CDCS Exam - Pass4sure CDCS Study Materials

Valid Real CDCS Exam - Pass4sure CDCS Study Materials

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EXIN CDCS Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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.
Topic 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.
Topic 3
  • 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.

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The Best EXIN - CDCS - Valid Real EXIN EPI Certified Data Centre Specialist Exam

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EXIN EPI Certified Data Centre Specialist Sample Questions (Q24-Q29):

NEW QUESTION # 24
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 non-continuous occupied areas.
  • C. It can only be used in computer rooms which have sufficient air changes per hour.
  • D. The gas containers need to be close to the hazard area.

Answer: B

Explanation:
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.


NEW QUESTION # 25
The noise levels in the data center are approximately 91 dB (A).
Do employers need to take precautions?

  • A. No, anything less than 100 dB (A) is acceptable.
  • B. There are no regulations regarding noise levels inside a building. Regulations only apply to noise pollution outside of the building.
  • C. As long as the data is compliant to ISO/IEC 27001 it is acceptable.
  • D. Yes, since it is mandated by regulations.

Answer: D

Explanation:
In a data center with noise levels of 91 dB (A), employers are indeed required to take precautions to protect personnel, as this level exceeds commonly accepted safety thresholds for occupational noise exposure. Regulations, such as those from the Occupational Safety and Health Administration (OSHA) or similar agencies, mandate specific controls and protections for environments with high noise levels.
Detailed Explanation:
Noise levels above 85 dB (A) typically trigger requirements for hearing conservation programs. At 91 dB (A), steps like providing ear protection, conducting regular noise assessments, and possibly implementing engineering controls to reduce noise should be taken. Extended exposure to such levels can lead to hearing loss, so regulatory compliance ensures both immediate and long-term protection for personnel.
EPI Data Center Specialist References:
EPI guidelines for data center safety address noise exposure as part of the environmental safety measures. EPI recommends adhering to local occupational health regulations, as excessive noise can harm personnel and affect operational efficiency due to potential health hazards.


NEW QUESTION # 26
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

Answer: D

Explanation:
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.


NEW QUESTION # 27
An MCB needs to be installed in the PDU of an air-conditioner unit.
Which breaking curve should you select?

  • A. C-Curve
  • B. D-Curve
  • C. B-Curve
  • D. A-Curve

Answer: A

Explanation:
For an MCB (Miniature Circuit Breaker) in the PDU of an air-conditioning unit, a C-Curve is recommended. C-Curve breakers are suitable for circuits with moderate inrush currents, such as those experienced in air conditioning units. They provide protection against overloads while accommodating the inrush without nuisance tripping.
Detailed Explanation:
C-Curve breakers trip when currents exceed 5 to 10 times the rated current, making them ideal for devices like air conditioners that experience moderate inrush currents upon startup. This characteristic provides a balance between protection and resilience against startup surges, preventing unnecessary trips while safeguarding the circuit.
EPI Data Center Specialist References:
EPI guidance for data center electrical systems specifies that C-Curve breakers are appropriate for equipment with inrush characteristics similar to air conditioning units, as they help prevent operational interruptions caused by typical surges during equipment start-up.


NEW QUESTION # 28
When shielding material reaches its saturation point, what will be the impact?

  • A. The shielding material will reach its optimal shielding performance state.
  • B. The shielding material will reach its maximum electrically charged state.
  • C. The shielding material will no longer be able to attenuate (reduce) additional EMF.
  • D. The shielding material will increase its permeability factor.

Answer: C

Explanation:
When shielding material reaches its saturation point, it can no longer effectively attenuate additional EMF. At saturation, the material's ability to absorb or redirect magnetic fields is exhausted, meaning it cannot provide further shielding beyond this point. Additional EMF exposure would pass through the material without significant reduction.
Detailed Explanation:
Saturation occurs when the material's magnetic domains are fully aligned with the magnetic field, leaving no capacity to absorb or deflect further EMF. This can happen with high EMF levels, beyond the material's design limits, resulting in a breakdown of shielding effectiveness.
EPI Data Center Specialist References:
EPI guidelines on EMF management indicate that selecting appropriate shielding materials with sufficient capacity is essential to prevent saturation and ensure continuous protection. Saturation limits should be considered during design to avoid compromised shielding performance.


NEW QUESTION # 29
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