Exin CDCS - Certified Data Centre Specialist Exam
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Total 59 questions
Question #11 (Topic: Exam A)
The logical overview of the data center looks as pictured below.
To what TIA-942 Rating is this design made based on electrical only?
To what TIA-942 Rating is this design made based on electrical only?
A. Rating - 4
B. Rating - 3
C. Rating - 2
D. Rating - 1
Answer: B
Question #12 (Topic: Exam A)
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?
What should you recommend to reduce the amount of EMF coming from the electrical riser?
A. Install single-phase power cabling
B. Install three-phase power cabling based on three individual core wires
C. Install bus bar trunking
D. Install three-phase power cabling based on a combined cable (e.g. XPLE etc.)
Answer: D
Question #13 (Topic: Exam A)
Management has requested for a 15 minutes 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?
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?
A. UPS efficiency
B. Inverter efficiency
C. Load imbalance on the phases
D. Available battery charging current
Answer: A
Question #14 (Topic: Exam A)
What should you consider when using raised floor tiles with air deflectors or louvers?
A. Tiles with air deflectors or louvers can be very heavy.
B. Tiles with air deflectors or louvers will reduce the cooling capacity of the tile.
C. Tiles with air deflectors or louvers do not allow for a flexible cooling solution.
D. Tiles with air deflectors or louvers can only be used to cool storage equipment.
Answer: B
Question #15 (Topic: Exam A)
A data center requires an audit to find out whether it conforms with ANSI/TIA-942 Rated-3 (concurrently maintainable).
Will the network architecture be part of this audit?
Will the network architecture be part of this audit?
A. No, as concurrently maintainable only applies to electrical and mechanical (power and cooling).
B. Yes, but only if the network administration does not comply to ANSI/TIA-606.
C. Yes, amongst other aspects, the network architecture should be Rated-3 compliant with the requirements of ANSI/TIA-942.
D. No, only the type of cabling used will be audited.
Answer: C
