Get 100% Passing Success With True H12-421-ENU Exam! [Jul-2021]
Huawei H12-421-ENU PDF Questions - Exceptional Practice To Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization
NEW QUESTION 71
The NetCol5000-C air conditioner does not support the power module plug and play maintenance.
- A. False
- B. True
Answer: A
NEW QUESTION 72
The gas fire extinguishing device is a fire extinguishing device composed of (). (Multiple choice)
- A. Fire cylinder
- B. Solenoid valve
- C. Pressure switch
- D. Sound and light alarm bell
Answer: A,B,C
NEW QUESTION 73
When a fire occurs in the cabinet, what is used to activate the gas fire extinguishing device on site?
- A. Solenoid valve
- B. Pressure switch
- C. Emergency stop button / manual deflation button
- D. Fire cylinders
Answer: C
NEW QUESTION 74
When the UPS5000-E shares the battery pack, the battery capacity parameter of each UPS is set to the total capacity of the entire battery pack.
- A. True
- B. False
Answer: A
NEW QUESTION 75
The height of the ECC800 collector is () U.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 76
The alarms of all devices can be displayed on the NetEco, but the corresponding alarm automatic formation work orders cannot be sent to the processor.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 77
The reasonable exhaust pressure range of NetCol5000-A is ( ) Mpa. (Multiple choice)
- A. 1.5 ~3.1 （ 15~35° )
- B. 3.1~4.15 （ above 45° )
- C. 2.5~3.8 （ 35~45° )
- D. 1.5~2.5 （ below 15° )
Answer: A,B,C,D
NEW QUESTION 78
Data center siting needs to evaluate the following () factors. (Multiple choice)
- A. Physical and geographical conditions
- B. Cost factors
- C. Supporting facilities
- D. Building structure
Answer: A,B,C,D
NEW QUESTION 79
The NetCol5000-A35kW indoor unit installation needs to be connected to the zero line.
- A. False
- B. True
Answer: A
NEW QUESTION 80
Direct Ventilation Natural Cooling Solution in the direct ventilation mode, the compressor of the air conditioner stops working, mainly because the fan replaces the outdoor cold air with the indoor hot air, so the PUE is very low.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 81
The user can modify the login password in the ( ) menu of the ECC800 web interface.
- A. Electronic label
- B. User Management
- C. System upgrade
- D. Version information
Answer: B
NEW QUESTION 82
When the NetCol5000-A air conditioner was commissioned, Which statement about the possible cause of the "exhaust high pressure alarm" was wrong?
- A. Too little refrigerant charge
- B. Excessive refrigerant charge
- C. Outdoor fan cannot start
- D. Outdoor unit fan speed is too low
Answer: A
NEW QUESTION 83
NetCol5000-A air conditioner compressor exhaust temperature is too high, what are the reasons? (Multiple Choice)
- A. The refrigerant circuit or device is clogged
- B. condenser filth blockage leads to poor heat dissipation
- C. Too little refrigerant charge
- D. The outdoor unit is not installed correctly.
Answer: A,B,C,D
NEW QUESTION 84
Which of the following technology or scheme can effectively reduce the PUE? (Multiple choice)
- A. Efficient modular UPS
- B. Closed cold/hot passage
- C. Precise air supply
- D. Increase battery capacity
Answer: A,B,C
NEW QUESTION 85
DOD (depth of discharge) indicates the percentage of battery discharge and battery rated capacity.
- A. True
- B. False
Answer: A
NEW QUESTION 86
When the UPS5000-E (), boot will automatically run the Quick Setup Wizard. (Multiple Choice)
- A. First boot
- B. Start after recovery failure
- C. Turn it off and then on.
- D. The device is turned on again after the factory settings are restored.
Answer: A,D
NEW QUESTION 87
The operation noise of the NetCol5000-A air conditioning unit is abnormal. It should be checked whether the compressor, fan, pipeline, etc. are fixed normally and there is looseness.
- A. True
- B. False
Answer: A
NEW QUESTION 88
When the status of UPS2000G battery is "NA", it may be ().
- A. Battery N line is not connected
- B. Battery low voltage
- C. The battery is connected properly.
- D. The battery is not connected
Answer: D
NEW QUESTION 89
In ECO mode, the UPS operates in the () state when the input is stable.
- A. Main road inverter
- B. Maintenance bypass
- C. Battery
- D. Bypass
Answer: D
NEW QUESTION 90
If the UPS5000-E-400kVA is equipped with an IP21 component, the top outlet is not supported.
- A. True
- B. False
Answer: A
NEW QUESTION 91
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