PDF (New 2021) Actual Huawei H12-411 Exam Questions
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NEW QUESTION 74
Which of the following functions can be achieved by dynamic environment monitoring system? (Multiple choice)
- A. Operation status monitoring
- B. Operating parameters display
- C. remote management
- D. Alarm information display
Answer: A,B,C,D
NEW QUESTION 75
UPS front-end input can be two-way mains, a master and a backup. Also could be all the way electricity, all the way to the oil machine input.
- A. False
- B. True
Answer: B
NEW QUESTION 76
When using the PoE (Power over Ethernet) interface, there are two functions of passing and supplying power.
- A. False
- B. True
Answer: B
NEW QUESTION 77
Air conditioning has three major indicators; the three major indicators refer to (). (Multiple Choice)
- A. Temperature
- B. Humidity
- C. Cleanliness
- D. Dryness
Answer: A,B,C
NEW QUESTION 78
Use RS485 communication, the maximum communication distance are () meters.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 79
Alarms of the dynamic environment monitoring system usually have different levels.
- A. False
- B. True
Answer: B
NEW QUESTION 80
In the main inverter modeT the inverter will change from main inverter to battery inverter mode when overloaded.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 81
Cooling coil controls the indoor temperature and humidity via a heat exchange with refrigerant and indoor air.
- A. False
- B. True
Answer: A
NEW QUESTION 82
Huawei dynamic environment monitoring system, which equipment at the data collection layer can pass the underlying components (UPS, precision air conditioning, etc.) information to the monitoring software?
- A. server
- B. camera
- C. ECC800
- D. entrance guard
Answer: C
NEW QUESTION 83
The closer the PUE value is to (), indicates that the better the data center energy efficiency status is.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 84
Which is the unit of UPS rated capacity?
- A. AH
- B. Kw
- C. KVA
- D. Var
Answer: C
NEW QUESTION 85
Data center energy consumption mainly comes from the ring equipment, lighting system, refrigeration systems, power supply and distribution system. How to reduce the energy dissipations of the () is the key to solve data center energy conservation in the industry at present
- A. Power Supply and Distribution System
- B. IT equipment
- C. Lighting System
- D. Refrigeration system
Answer: D
NEW QUESTION 86
() is used to ensure that the extinguishing agent is sprayed in a specific jet to promote the rapid vaporization of the extinguishing agent and to achieve the extinguishing concentration within the protected space.
- A. extinguishing agent bottle group
- B. Start the device
- C. Fire network
- D. Nozzle
Answer: D
NEW QUESTION 87
Valve-regulated lead-acid battery safety valve has () function. (Multiple choice)
- A. filter acid mist
- B. Anti-battery internal pollution
- C. Adjust the battery pressure inside and outside
- D. Flame retardant
Answer: A,B,C
NEW QUESTION 88
Leakage current protection device is based on the current exceeds the specified value for a period of time with its own heat to melt the melt so that the circuit is disconnected.
- A. False
- B. True
Answer: A
NEW QUESTION 89
In the battery installation process, the use of high-voltage battery maintenance channel should be insulated.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 90
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