Reliable CDCS Dumps - Excellect CDCS Pass Rate
Reliable CDCS Dumps - Excellect CDCS Pass Rate
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Tags: Reliable CDCS Dumps, Excellect CDCS Pass Rate, Free Sample CDCS Questions, Valid CDCS Exam Notes, Key CDCS Concepts
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Excellect CDCS Pass Rate - Free Sample CDCS Questions
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EXIN EPI Certified Data Centre Specialist Sample Questions (Q54-Q59):
NEW QUESTION # 54
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 °C / 20 °F. Calculate the approximate CFM required to cool the equipment in the rack.
- A. Approximately 1,500 CFM
- B. Approximately 500 CFM
- C. Approximately 1,000 CFM
- D. Approximately 160 CFM
Answer: C
Explanation:
To calculate the cooling airflow requirement for ICT equipment, you can use the formula:
CFM=Power (kW)×3160ΔT(°F)text{CFM} = frac{text{Power (kW)} times 3160}{Delta T (text{°F})}CFM=ΔT(°F)Power (kW)×3160 For equipment consuming 6 kW with a Delta-T of 20°F:
CFM=6×316020=948≈1,000 CFMtext{CFM} = frac{6 times 3160}{20} = 948 approx 1,000 , text{CFM}CFM=206×3160=948≈1,000CFM 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 References:
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.
NEW QUESTION # 55
A data center is located in an area where the demand for power is higher than the utility power company is able to deliver. This results in frequent power outages and, therefore, power shedding (scheduled/controlled power shutdown for areas) is frequently applied. The mains power is more than 650 hours/year not available.
What type of generators should be installed?
- A. A combination of standby-, prime-, and continuous-generators, as the duration of the power outage is unpredictable. The total available capacity of the generators should be at least 500% of the data center load
- B. Continuous generators should be installed, at least in an N+1 configuration
- C. Standby generators should be installed in at least an N+1 configuration
- D. Continuous generators should be installed; no N+1 configuration is needed as the generators will run all the time
Answer: B
Explanation:
In areas with frequent and extended power outages, continuous generators with at least an N+1 configuration are necessary to ensure consistent power availability. Continuous generators are designed for prolonged operation, making them suitable for scenarios where utility power is frequently unavailable, as in this case with outages exceeding 650 hours per year. An N+1 configuration ensures redundancy, which is critical for maintaining uptime in a high-availability data center.
Detailed Explanation:
Continuous generators provide reliable power over long durations, unlike standby generators, which are intended only for short-term use. The N+1 configuration ensures that there is always an additional generator available in case of failure, thus maintaining power supply even if one generator goes offline.
EPI Data Center Specialist References:
EPI best practices recommend continuous generators with redundancy for data centers located in areas with high power instability to maintain reliability and continuous operation.
NEW QUESTION # 56
You are allowed to use a calculator for this question.
A computer room has a net volume of approximately 2,500 m³ / 88,287 ft³.
The temperature is 20 °C / 68 °F.
The required design concentration is 7%.
The S-Factor is 0.1359 (metric) / 1.885 (imperial).
Calculate the amount of gas required for this computer room based on FM200. What is the correct weight?
- A. Approximately 820 kg / 1,800 lbs
- B. Approximately 1,640 kg / 3,600 lbs
- C. Approximately 410 kg / 900 lbs
- D. Approximately 1,390 kg / 3,000 lbs
Answer: A
Explanation:
The amount of FM200 gas required can be calculated using the formula:
Weight of Gas=Net Volume×Design Concentration×S-Factortext{Weight of Gas} = text{Net Volume} times text{Design Concentration} times text{S-Factor}Weight of Gas=Net Volume×Design Concentration×S-Factor Using metric units:
Net Volume: 2,500 m³
Design Concentration: 7% (or 0.07)
S-Factor: 0.1359
Calculation:
2,500 m3×0.07×0.1359=821.325 kg2,500 , text{m}