[Mar-2025] CDCS Dumps PDF – CDCS Real Exam Questions Answers [Q35-Q52]

Q35. A new network storage device in a non-standard size rack of approximately 600 kg/1,300 lbs is going to be installed in the data center.
Are new floor loading calculations required?

Q36. 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.

Q37. The pipes of a VESDA smoke detection system are installed at the air intake of the air conditioner inside the computer room.
Is this a good practice from an early smoke detection point of view?

Q38. The noise levels in the data center are approximately 91 dB (A).
Do employers need to take precautions?

Q39. What precaution shall be taken for cabling leading into an equipment rack when a data center is in a seismic-prone area?

Q40. You are installing new copper cabling.
What is the advantage or disadvantage of choosing pre-terminated category 6 or 6A cabling?

Q41. In which stage of the data center life cycle does commissioning take place?

Q42. A data center scores Rated-3 in mechanical, Rated-4 in electrical, and Rated-2 in architectural.
What is the overall Rating of this data center when the Rating is based on the ANSI/TIA-942?

Q43. You are working on the design of a new facility. The electrical riser of the building with high current power is located close to the area where sensitive IT equipment in the computer room will be located.
What should you recommend to reduce the amount of EMF coming from the electrical riser?

Q44. The air intake of the mission-critical server at the top of the rack is measuring 25 °C/77 °F.
Is this acceptable?

Q45. What should you consider when using raised floor tiles with air deflectors or louvers?

Q46. When installing a raised floor, can we use a spirit level bar to level the floor?

Q47. What is the minimum requirement for the power feeds to the building for a Rated-3 data center based on the ANSI/TIA-942 standard?

Q48. An air-conditioner unit needs to be selected. Two types are available:
Unit-A has a Sensible Heat Ratio (SHR) of 0.7.
Unit-B has a Sensible Heat Ratio (SHR) of 0.9.
From an efficiency point of view, which one should be selected?

Q49. What is a significant difference between a halocarbon gas-based fire suppression system and an inert gas-based fire suppression system?

Q50. Management has requested a 15-minute battery bank assuming full load on the UPS. The UPS vendor has provided the following specifications of the UPS:
* Rated power: 30 kVA
* Rectifier input voltage: 400 V/3 phase
* Rectifier input power factor: 0.8
* Battery rated voltage: 384 V
* Number of cells: 192
* End of discharge voltage: 308 V
* Inverter output voltage: 400 V/3 phase
* Inverter output power factor: 0.8
What information is missing to perform the battery calculation?

Q51. Do you need to consider bullet (ballistics) protection when designing a data center?

Q52. The location of a data center is just above the Arctic Circle (North Pole). The outside air temperature is never above 21°C/70°F.
Taking energy efficiency as the highest priority, which cooling system should you recommend?