Start your EXIN EPI Certified Data Centre Specialist certification preparation with updated CDCS practice tests. The team of DumpsBase has updated the practice tests to help you understand the major exam concepts, practice all questions and answers, pass your exam smoothly. With the PDF and software formats, one year of free updates, you may achieve success smoothly.<\/p>\n\n\n\n
The EXIN EPI Certified Data Centre Specialist (CDCS) is an advanced certification exam focused on the design, implementation, evaluation, and improvement of mission-critical data centres. It is intended for IT facilities professionals, data centre engineers, consultants, project managers, and operations personnel who need to review technical designs and evaluate proposals from suppliers and contractors.<\/p>\n\n\n\n
The CDCS certification covers three official subject areas:<\/p>\n\n\n\n
Data centre life cycle and standards<\/strong><\/p>\n\n\n\n Designing and implementing a data centre<\/strong><\/p>\n\n\n\n Environmental considerations and efficiency<\/strong><\/p>\n\n\n\n The CDCS practice tests were updated to align wi the main areas, making you strengthen your preparation, review important concepts, and improve your familiarity with the type of questions they may encounter during the certification journey.<\/p>\n\n\n\n DumpsBase provides the most updated CDCS practice tests that you can incorporate into your existing study plans. The materials offer another way to review exam-related concepts, test knowledge, and organize preparation more efficiently. You can access the questions during different stages of your study process and use your results to decide which subjects require additional attention.<\/p>\n\n\n\n Question 1:<\/strong><\/p>\n\n\n\n In order to save energy, you are going to install an automated system to switch off lights. Question 2:<\/strong><\/p>\n\n\n\n You are allowed to use a calculator for this question. A battery bank is rated at a total capacity of 600 Ah. Calculate how much charging current the rectifier should be able to supply as charging current. Question 3:<\/strong><\/p>\n\n\n\n The computer room has high levels of H2S gas contamination. Question 4:<\/strong><\/p>\n\n\n\n What indicates the breaking capacity of a fuse or breaker? Question 5:<\/strong><\/p>\n\n\n\n You are allowed to use a calculator for this question. The total power consumption of the ICT equipment in a rack is 6 kW. The equipment is traditional ICT equipment with a Delta-T of approximately 11 \u00b0C \/ 20 \u00b0F. Calculate the approximate CFM required to cool the equipment in the rack.\n
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What should be taken into consideration when installing such a system?
A. Security guards should perform regular inspections verifying the system works.
B. The system should not be based on motion detection as the lights might suddenly switch off while staff is still at work.
C. It is not advisable to use such a system since it will reduce the lifetime of LED lighting.
D. At all times, the levels should allow for security cameras to function properly.
Answer:<\/strong> D
Explanation:<\/strong>
When installing an automated lighting system, especially in a security-sensitive area like a data center, it\u2019s essential to ensure that lighting levels support security camera functionality at all times.
Sufficient lighting is necessary for cameras to capture clear footage, ensuring continuous monitoring and security regardless of occupancy.
Detailed Explanation
Automated lighting based on occupancy or time settings can reduce energy costs, but it must be configured to maintain adequate illumination for surveillance. Security cameras require minimum lighting levels to operate effectively, so lighting should be configured to avoid compromising security.
EPI Data Center Specialist
Reference: EPI emphasizes security and safety in data centers, advising that lighting systems should maintain levels conducive to effective surveillance, ensuring operational security even when lights are automatically controlled.<\/p>\n\n\n\n
A. 12 Amperes
B. 30 Amperes
C. 60 Amperes
D. 80 Amperes
Answer:<\/strong> C
Explanation:<\/strong>
To determine the charging current for a battery bank, a general rule of thumb is that the charging current should be 5% of the total battery capacity.
For a battery rated at 600 Ah, this calculation would be:
600\u2009Ah\u00d70.05=30\u2009Amperes600 , \\text{Ah} \\times 0.05 = 30 , \\text{Amperes}600Ah\u00d70.05=30Amperes This ensures the battery is charged efficiently without overloading the rectifier or risking battery damage.
Detailed Explanation
Battery charging current is typically set as a percentage of the battery’s capacity to balance effective charging with longevity and safety. A 5% charging rate is standard for lead-acid batteries, which would be 30 Amperes for a 600 Ah battery bank.
EPI Data Center Specialist
Reference: EPI standards recommend calculating charging currents based on a percentage of the battery capacity to ensure safety and efficiency, aligning with best practices for battery management in data centers.<\/p>\n\n\n\n
What is the best option to resolve this issue?
A. Vacuum the whole room using a HEPA\/S-Class-based filter.
B. Install air-scrubbers.
C. Clean the room and racks with a damp\/wet cloth.
D. Provide more air changes per hour by adding more fresh air to the computer room.
Answer:<\/strong> B
Explanation:<\/strong>
High levels of H2S (hydrogen sulfide) gas contamination in a computer room are best addressed by installing air-scrubbers. Air-scrubbers can effectively filter out contaminants, including corrosive gases like H2S, ensuring clean air circulation and protecting sensitive IT equipment from potential corrosion and damage.
Detailed Explanation
Air-scrubbers are designed to remove various airborne contaminants and are particularly useful in environments where corrosive gases are present. These systems use filters or chemical reactions to neutralize harmful substances, making them ideal for data centers that need to maintain high air quality for equipment reliability.
EPI Data Center Specialist
Reference: EPI guidelines suggest air-scrubbing technologies to remove contaminants that pose risks to electronic equipment, maintaining air quality and reducing corrosion risk.<\/p>\n\n\n\n
A. Mechanical strength of the casing of a fuse or breaker.
B. The maximum voltage, in case of an electrical surge, that the fuse or breaker can handle without being destroyed or causing an electric damaging arc.
C. The current at which the device will trip.
D. The current that a fuse or breaker is able to interrupt without being destroyed or causing an electric damaging arc.
Answer:<\/strong> D
Explanation:<\/strong>
The breaking capacity of a fuse or breaker indicates the maximum current it can safely interrupt without being damaged or creating a dangerous arc. This value is crucial for ensuring that the device can handle fault conditions and prevent equipment damage or fire risks due to excessive current flow.
Detailed Explanation
The breaking capacity, also known as the interrupting rating, ensures that the fuse or breaker can safely handle fault currents up to a specified limit. Exceeding this capacity could result in the device failing to interrupt the current, potentially causing hazardous conditions like electrical arcs.
EPI Data Center Specialist
Reference: EPI training underscores the importance of matching fuses and breakers with appropriate breaking capacities for the anticipated fault levels in data centers to ensure reliable and safe operation.<\/p>\n\n\n\n
A. Approximately 1,500 CFM
B. Approximately 1,000 CFM
C. Approximately 500 CFM
D. Approximately 160 CFM
Answer:<\/strong> B
Explanation:<\/strong>
To calculate the cooling airflow requirement for ICT equipment, you can use the formula: CFM=Power (kW)\u00d73160\u0394T(\u00b0F)\\text{CFM} = \\frac{\\text{Power (kW)} \\times 3160}{\\Delta T (\\text{\u00b0F})}CFM=\u0394T(\u00b0F)Power (kW)\u00d73160
For equipment consuming 6 kW with a Delta-T of 20\u00b0F:
CFM=6\u00d7316020=948\u22481,000\u2009CFM\\text{CFM} = \\frac{6 \\times 3160}{20} = 948 \\approx 1,000 ,
\\text{CFM}CFM=206\u00d73160=948\u22481,000CFM
Detailed Explanation
This formula provides an estimate of the cubic feet per minute (CFM) of air required to cool the equipment based on its power consumption and the temperature difference (Delta-T) between intake and exhaust. The Delta-T represents the cooling effectiveness of the airflow.
EPI Data Center Specialist
Reference: EPI recommends using this calculation for determining airflow requirements in data centers, ensuring that cooling systems are adequately sized to maintain equipment within safe temperature limits.<\/p>\n\n\n\n