CDCS試験無料問題集（60題）「EXIN EPI Certified Data Centre Specialist 認定」

出題：1

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

A. Cables should be replaced by busbar trunking.

B. Cables shall be tightly organized to the rack and trays to avoid movement.

C. Cables should be loosely organized to allow for movement and be latched at the connectors.

D. Cables can be organized in any way as it is not important.

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

When are the wet bulb and dry bulb temperatures identical?

A. When the dry bulb's temperature is at the highest allowable temperature for IT equipment as per ASHRAE

B. When the dry bulb's temperature is at the lowest allowable temperature for IT equipment as per ASHRAE

C. When the relative humidity is at the best practice value for relative humidity, being 50% RH

D. When the relative humidity is 100%

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

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

A. Design

B. Retire

C. Operate/optimize

D. Implement

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

A 5kW (power consumption) server keeps crashing with the message 'temperature too high'.
The intake temperature is measured at 25 °C/77 °F and a relative humidity (RH) level of 50%.
The exhaust temperature is 29 °C/84 °F and 45% RH.
The raised floor is providing an adequate amount of CFM/CMH at a reasonable velocity.
The pressure under the raised floor is approximately 25 Pa/0.1 inch H₂O.
Analyze the situation and indicate what the most likely cause is for this server to crash.

A. Dust inside the server causing issues with convection-based heat transfer

B. No cause could be determined as the CFM/CMH of the air conditioning equipment is not stated

C. The exhaust temperature is exceeding the ASHRAE recommended values

D. The raised floor pressure is too low and/or the raised floor tile % opening is not adequate

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

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?

A. Rated-2 since that is the lowest rating received

B. Depends on the Rating scored in telecommunications

C. Rated-4 since electrical is more important than mechanical and architectural

D. Rated-4 since that is the highest rating received

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

You have three UPS systems connected in parallel. The UPS systems have an imbalance in the load sharing of approximately 20%.
What should you recommend?

A. Nothing, there is no reason for any concern

B. Review the cable lengths of each UPS to the common busbar

C. Review the harmonics levels within the computer room

D. Review the common mode noise levels within the computer room

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

CDCS試験無料問題集「EXIN EPI Certified Data Centre Specialist 認定」