Get 100% Passing Success With True H12-421-ENU Exam! [Oct-2021]
Huawei H12-421-ENU PDF Questions - Exceptional Practice To Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization
NEW QUESTION 65
When installing the power line on the UPS5000-E, if there are different sources on the main-lines and bypass, you need to remove the copper bars connected to the bypass and main lines first, and then connect the main circuit and bypass input respectively.
- A. True
- B. False
Answer: A
NEW QUESTION 66
Common monitoring software structures include B/S and C/S architectures.
- A. True
- B. False
Answer: A
NEW QUESTION 67
In the NetCol5000-A air conditioner, if a large number of air bubbles are observed in the liquid crystal mirror, it indicates that the refrigerant system lacks refrigerant, and the refrigerant should be charged as needed.
- A. True
- B. False
Answer: A
NEW QUESTION 68
Domains can be created in NetEco, such as campuses, buildings, machine rooms, containers, etc.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 69
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 70
If the customer load cannot be power-off, what should be taken care when closing the maintenance bypass switch? (Multiple choice)
- A. First perform EPO then close maintenance switch
- B. The maintenance bypass switch can also be closed in the inverter power supply mode.
- C. Turn off the inverter, let the UPS be in bypass power supply mode and then close the maintenance bypass switch.
- D. Close the maintenance switch first and then execute the EPO.
Answer: C,D
NEW QUESTION 71
When the Huawei air-cooled air conditioner outdoor unit is installed horizontally, the distance between the two outdoor units is greater than or equal to () mm.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 72
The technical essentials for the pumping action of the pipeline are: the degree of vacuum is not greater than ( ) Pa (absolute pressure).
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 73
If the UPS5000-E-400K is bypassed and the maintenance bypass is closed, both the main power module and the bypass module stop working.
- A. False
- B. True
Answer: A
NEW QUESTION 74
When inspecting, maintaining and repairing electrical equipment in non-blackout mode, a warning sign or signage should be placed on the electrical installation and work area.
- A. True
- B. False
Answer: A
NEW QUESTION 75
NeCol5000-C nitrogen filling pressure value is (); holding time is ().
- A. 0.8MPa; 24h
- B. 0.8MPa; 12h
- C. 1.0MPa; 12h
- D. 1.0MPa; 24h
Answer: A
NEW QUESTION 76
There is no limit to the total length of the direct expansion air-cooled air-conditioning refrigerant pipe.
- A. False
- B. True
Answer: A
NEW QUESTION 77
The NetCol5000-A35kW air conditioner has a light load dehumidification function.
- A. False
- B. True
Answer: A
NEW QUESTION 78
ECC800 does not support historical data export.
- A. False
- B. True
Answer: A
NEW QUESTION 79
Which interface is not on the smart ETH socket?
- A. PoE
- B. AI/DI
- C. PWR_OUT power cascade interface
- D. PWR_IN power cascade interface
Answer: B
NEW QUESTION 80
When the single machine is working, after the function of power-off of the ups2000-g machine is prohibited, the PL port has no output when overload or battery power is low.
- A. False
- B. True
Answer: A
NEW QUESTION 81
The FusionModule1000B series solution can meet the Tier4 power supply requirements when using the 2N power supply and distribution system.
- A. False
- B. True
Answer: A
NEW QUESTION 82
The RH2288 server supports () power input.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 83
The cabinet collector cannot be used for environmental data collection of IT cabinets.
- A. False
- B. True
Answer: A
NEW QUESTION 84
Among the components of the UPS5000-E, () can be hot plug. (Multiple choice)
- A. Energy Control Sheet
- B. Bypass module
- C. Dry joint card
- D. Power module
Answer: A,B,C,D
NEW QUESTION 85
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