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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
  • 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.
Topic 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.

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Our EXIN CDCS practice exam simulator mirrors the EXIN CDCS exam experience, so you know what to anticipate on EXIN EPI Certified Data Centre Specialist day. Our EXIN CDCS practice test software features various question styles and levels, so you can customize your EXIN CDCS Exam Questions preparation to meet your needs.

EXIN EPI Certified Data Centre Specialist Sample Questions (Q113-Q118):

NEW QUESTION # 113
A customer requires THDi from the UPS not to exceed 3% and wants high efficiency. The UPS has a 6-pulse SCR/thyristor rectifier and is loaded ~80%. Many ICT changes are expected in the next 3 years. What should you recommend?

Answer: C

Explanation:
A 6-pulse thyristor rectifier typically produces 25-35% THDi at nominal load. To reach #3% THDi, an active harmonic filter (or a 12/18-pulse or IGBT rectifier UPS) is required. Passive filters are load-specific and less effective over a wide operating range-undesirable with frequent changes.
References: IEEE 519-2014 (harmonic current limits), UPS vendor application notes (6-pulse vs IGBT rectifier THDi), ANSI/TIA-942-B Annex (power quality).


NEW QUESTION # 114
What is needed to determine the Relative Humidity (RH)?

Answer: B

Explanation:
Relative Humidity (RH) is defined as the ratio of the actual water vapor content in the air to the maximum possible water vapor content at a given temperature. To calculate RH:
* Dry bulb temperature (DBT): the ambient air temperature.
* Wet bulb temperature (WBT): the temperature measured by a thermometer covered with a wet wick, influenced by evaporative cooling.
Using DBT and WBT, the humidity ratio and dew point can be determined with a psychrometric chart or Mollier diagram. From there, RH is calculated as:
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Options A and B are incomplete, while option C is an experimental method, not standard practice. The recognized method is option D.
References: ASHRAE Fundamentals Handbook - Psychrometrics, ISO 7726 (Measurement of Physical Quantities in Thermal Environments).


NEW QUESTION # 115
A battery bank has 800 Ah total capacity. How much charging current should the rectifier be able to supply?

Answer: A

Explanation:
Battery charging current is typically sized at 10% of the total Ah capacity to ensure safe charging without overheating.
Charging Current=800Ah×0.1=80A
* 40 A or 60 A would undercharge, extending recovery time after discharge.
* 160 A would be too high, causing heat and reducing battery life.
Thus, 80 A is correct.
References: IEEE Std 1188 (VRLA Battery Maintenance), IEC 60896-21/22 (Stationary Lead-Acid Batteries).


NEW QUESTION # 116
What is the calculation for the desired attenuation factor for shielding material?

Answer: C

Explanation:
The attenuation factor for shielding material is typically calculated using the formula A = 20 log (R / M). This equation provides the attenuation in decibels (dB), where R represents the measured electromagnetic field strength, and M is the maximum acceptable level. The logarithmic scale helps quantify how much the shielding reduces EMF levels relative to the maximum allowable value.
Detailed Explanation:
This formula calculates attenuation by comparing the measured value with the acceptable threshold, with the result expressed in decibels. A higher attenuation indicates more effective shielding material, essential for environments requiring robust EMF management.
EPI Data Center Specialist References:
EPI standards include the use of logarithmic formulas to evaluate attenuation levels, ensuring that shielding materials provide adequate reduction in EMF to protect sensitive equipment within data centers.


NEW QUESTION # 117
Do you need to consider bullet (ballistics) protection when designing a data center?

Answer: A

Explanation:
Bullet (ballistics) protection is typically considered only for data centers that are potential targets or located near such targets. While ANSI/TIA-942 does not specifically require bulletproofing for all data centers, it is prudent to consider it based on location risk assessments, especially if the facility is in a high-risk area or near critical infrastructure that could attract threats.
Detailed Explanation:
Protective measures like bulletproofing depend on the threat landscape and the data center's exposure to risks such as crime or terrorism. Assessments for physical security are typically customized based on location-specific risks rather than being universally required by data center standards.
EPI Data Center Specialist References:
EPI guidelines emphasize customizing physical security measures based on threat assessments, suggesting that bulletproofing is appropriate in specific circumstances where the facility's risk profile justifies additional security measures.


NEW QUESTION # 118
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