[Mar 10, 2022] BraindumpsVCE H12-421 Exam Practice Test Questions (Updated 240 Questions)
Pass Huawei H12-421 Exam Info and Free Practice Test
NEW QUESTION 72
The scenario is complex, and the difficulty of creating a new site is the only challenge facing the development of traditional data center services.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 73
NetEco mobile app supports WiFi with a maximum effective distance of ( ) meters.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 74
The user can modify the ECC800's IP address from the () menu of the ECC800 Web interface.
- A. Monitoring module IP
- B. Emblem module settings
- C. Video IP settings
- D. Time setting
Answer: A
NEW QUESTION 75
DOD (depth of discharge) indicates the percentage of battery discharge and battery rated capacity.
- A. True
- B. False
Answer: A
NEW QUESTION 76
In NetEco "Video" function, you can enter ( ) and other operations (Multiple choice)
- A. Delete the camera
- B. Modify the camera
- C. Create a camera
- D. Video live browsing
Answer: A,B,C,D
NEW QUESTION 77
Users can monitor the status of devices such as UPS and air conditioner on the ECC800.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 78
When the air conditioning outdoor of Huawei air-cooled air conditioner is installed horizontally, it is required to be ≥ () mm from the wall or obstacle.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 79
In the "Video" function of NetEco, you can perform operations such as (). (Multiple Choice)
- A. Delete the camera
- B. Modify the camera
- C. Create a camera
- D. Video live browsing
Answer: A,B,C,D
NEW QUESTION 80
When the NetCol5000-A removes the air conditioning humidifier, the steps to maintain the electrode humidifier include (). (Multiple choice)
- A. Remove the drain tank and drain valve component
- B. Replace the hardened and brittle hose thoroughly flush the drain
- C. Remove and clean the water supply valve
- D. Disconnect the water supply valve and drain valve wiring
Answer: A,B,C,D
NEW QUESTION 81
After the air conditioner is commissioned, the indoor temperature is in a reasonable state, and the suction pressure is not lower than ( ).
- A. 0.7MPa
- B. 5MPa
- C. 7MPa
- D. 6Mpa
Answer: A
NEW QUESTION 82
In the water side natural cooling scheme, cooling water can be directly supplied from the cooling tower to the air conditioner to complete the cooling.
- A. True
- B. False
Answer: A
NEW QUESTION 83
The RH2288 server supports () power input.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 84
When the NetCol5000-C commissions the drainage device, lift the high floater by hand for 5 seconds. At this time, the dual water pump is turned on at the same time, and the "discharge abnormality alarm" appears.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 85
The UPS5000-E can press the battery cold start button on the bypass module without the main bypass input to start the inverter, and the system will automatically enter the battery inverter mode.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 86
When the UPS5000-E is equipped with an IP21 component, the ejector component can also be installed.
- A. False
- B. True
Answer: A
NEW QUESTION 87
Which of the following air conditioning systems need to be equipped with a cooling tower or dry cooler?
- A. CW air-cooled type
- B. DX water-cooled type
- C. Direct ventilation air conditioning system
- D. DX air-cooled type
Answer: B
NEW QUESTION 88
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. Equipment failure
- B. Cable connection is loose
- C. Poor cable contact
- D. Power supply is not normal
Answer: A,B,C,D
NEW QUESTION 89
Can a sunroof actuator drive up to several sunroof electromagnetic locks at the same time?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 90
() air supply method must have a reasonable raised floor height.
- A. Upper hood air supply
- B. Row level horizontal air supply
- C. Upper air duct air supply
- D. Under the floor air supply
Answer: D
NEW QUESTION 91
In general, the air supply distance of the air duct is shorter than that of the hood air supply.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 92
The refrigerant air cylinder of the Huawei air-cooled air conditioner does not need to be inverted on the electronic scale when charging the refrigerant.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 93
The PDU8000 intelligent power meter parameter display is abnormal, which may be caused by (). (Multiple choice)
- A. Corresponding current transformer failure
- B. Intelligent power meter failure
- C. The corresponding voltage collection line is abnormal.
- D. Electricity or voltage ratio setting error
Answer: A,B,C,D
NEW QUESTION 94
The ECC800 supports two AC inputs.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 95
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