CDCS 試験問題を無料オンラインアクセス

What should be implemented when an Inergen-based fire suppression system is installed in the computer room?

• A.Drainage system under raised floor
• B.Gas tanks need to be within or close to the data center
• C.Proper water leak detection system
• D.Pressure release valves in the data center

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

• A.Design stage
• B.Operate/optimize stage
• C.Implement stage
• D.Retire stage

The humidity in the computer room has increased from about 60% up to 85% Relative Humidity (RH). What potential risk does this pose to your equipment?

• A.The risk of excessive wear and corrosion will increase
• B.The electrostatic discharge (ESD) levels will go up
• C.There will be a cooling risk due to a high wet bulb temperature
• D.No risks at all

Which formula is correct?

• A.Phase-to-Neutral Voltage = Phase-to-Neutral voltage * 1.732
• B.Phase-to-Neutral Voltage = Phase-to-Phase voltage /1.732
• C.Phase-to-Neutral Voltage = (Phase-to-Phase voltage * 1.732) / Phase-to-Neutral Voltage
• D.Phase-to-Neutral Voltage = Phase-to-Phase voltage * 1.732

Three data centers are benchmarked on facilities energy efficiency.
Data center A has achieved a PUE of 2.45.
Data center B has achieved a PUE of 1.20.
Data center C has achieved a PUE of 1.90.
Which of the data centers is operating at the highest facility efficiency?

• A.Data center B
• B.PUE does not indicate efficiency
• C.Data center A
• D.Data center C