Pass Huawei H12-421-ENU Exam With Practice Test Questions Dumps Bundle
2022 Valid H12-421-ENU test answers & Huawei Exam PDF
NEW QUESTION 103
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 104
Data center siting needs to evaluate the following () factors. (Multiple choice)
- A. Building structure
- B. Supporting facilities
- C. Cost factors
- D. Physical and geographical conditions
Answer: A,B,C,D
NEW QUESTION 105
The Netcol 5000-A35kW uses an electronic expansion valve.
- A. True
- B. False
Answer: B
NEW QUESTION 106
When calculating the battery capacity, the battery discharge capacity coefficients of the different backup times are the same.
- A. True
- B. False
Answer: B
NEW QUESTION 107
The sleep of the UPS module is to turn off the inverter of some modules when the system load rate is low and stable, so that some modules go to sleep, and the remaining un-hibernated modules bear a larger load to solve the problem of the low efficiency when the system load is light.
- A. True
- B. False
Answer: A
NEW QUESTION 108
When the ECC800 detects that the connection signal to the device is interrupted, a communication interruption alarm is generated. What are the possible reasons? (Multiple choice)
- A. Power supply is not normal
- B. Poor cable contact
- C. Cable connection is loose
- D. Equipment failure
Answer: A,B,C,D
NEW QUESTION 109
After the NetCol5000-A25kW half-cabinet air-conditioning refrigerant pipeline is installed, do the nitrogen charge pressure maintaining, the nitrogen pressure is () Mpa.
- A. 0.8
- B. 0
- C. 2.5
- D. 1
Answer: D
NEW QUESTION 110
What does NetEco basic features include? (Multiple choice)
- A. User Management
- B. Report Management
- C. Access control management
- D. Video management
Answer: A,B,C,D
NEW QUESTION 111
When the UPS5000-E (), boot will automatically run the Quick Setup Wizard. (Multiple Choice)
- A. Start after recovery failure
- B. The device is turned on again after the factory settings are restored.
- C. Turn it off and then on.
- D. First boot
Answer: B,D
NEW QUESTION 112
When the device interface uses the Modbus-RTU protocol, what needs to be installed when accessing the ECC800?
- A. Access control actuator
- B. sunroof actuator
- C. ETH converter
- D. AC actuator
Answer: C
NEW QUESTION 113
In the naming of UPS5000-E-120K-HASBS, the letter E stands for ().
- A. Input switch type is MCCB
- B. Input switch type is ATS
- C. E series modular UPS
- D. 208V voltage system
Answer: C
NEW QUESTION 114
The height of the ECC800 collector is () U.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 115
Which of the following is the correct procedure for powering up the UPS5000?
- A. Close the main road and bypass input switch -> Inverter start -> Set parameters, check system status -> Close battery switch -> Open load
- B. Close the main road and bypass input switch -> set parameters, check system status -> inverter start -> close battery switch -> open load
- C. Close the main circuit and bypass input switch -> set parameters, check system status -> close battery switch -> inverter start -> open load
- D. Set parameters, check system status -> Close main and bypass input switch -> Inverter start -> Close battery switch -> Open load
Answer: B
NEW QUESTION 116
Which of the following factors affect battery life? (Multiple Choice)
- A. Depth of discharge
- B. Number of cycles
- C. Temperature
- D. Rated capacity
Answer: A,B,C
NEW QUESTION 117
What are the working mode of the runner natural cooling scheme? (Multiple choice)
- A. Complete natural cooling mode
- B. Complete compressor cooling mode
- C. Mixed mode
- D. Direct ventilation mode
Answer: A,B,C
NEW QUESTION 118
You can view the camera's name, code, IP address, model, status and more in NetEco Video menu.
- A. True
- B. False
Answer: A
NEW QUESTION 119
When the integrated UPS is wired, if the input phase sequence is wrong, the machine will not work.
- A. True
- B. False
Answer: A
NEW QUESTION 120
Users can monitor the status of devices such as UPS and air conditioner on the ECC800.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 121
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