H12-411_V2.0-ENU Online Training Archives

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1. The access control system can only set the user to open the door, and cannot set when to open the door.

True

False

2. CORRECT TEXT

The following air conditioners are comfortable air conditioners ____________.

3. There are generally two types of variable air volume ventilated floors, one is through an adjustable air valve, and the other is a dedicated ventilated floor plus adjustable fans.

True

False

4. The increase of cabinet power density will lead to the emergence of local hot spots in the computer room, and row-level air conditioners can solve local problems. The hot spot is too high.

True

False

5. The fuse can protect personal safety when the equipment leaks.

True

False

6. CORRECT TEXT

The following ____________ Yes UPS 2N. The advantages of the system.

7. In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.

True

False

8. The following Does the model of air conditioner have an oil separator?

NetCol5000-A25kW

NetCol5000-A35kW

NetCol8000-A50kW

NetCol5000-C30kW

9. CORRECT TEXT

Huawei Monitoring System NetEco Support through ____________, send alarm information to customers.

10. When the AC power equipment is introduced in the three-phase four-wire system, in addition to the grounding of the near end of the power transformer, the near end of the electrical equipment and the equipment room should be grounded repeatedly on the neutral line.

True

False

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11. The following is for high frequency ups. The correct description of the rectifier components is.

Complete AC to DC conversion

Complete DC to AC conversion

Realize power factor correction and pressure reduction function

Realize power factor correction and boost function

12. CORRECT TEXT

The following ____________ belong to the characteristics of water-cooled chilled water air conditioners.

13. CORRECT TEXT

PUE The closer the value ____________, indicating that the energy efficiency status of the data center is good.

14. CORRECT TEXT

Use RS485 Communication method, the maximum communication distance is ____________ Meter.

15. CORRECT TEXT

The core components of the refrigeration system mainly include ____________.

16. Huawei Monitoring System NetEco Supports the concept of user groups, and implements role-based user group management. A user group is a group of user-level collections with the same operation permissions, and different user groups have different permissions.

True

False

17. CORRECT TEXT

The following ____________ are not part of the chilled water air conditioner.

18. CORRECT TEXT

UPS The functions are ____________.

19. CORRECT TEXT

The following ____________ Is the correct statement 6Two fixed valve-regulated sealed

lead-acid battery cells are connected in series, and the rated capacity is 150AH.

20. CORRECT TEXT

____________ Yes upsThe unit of rated capacity.

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21. R410a Refrigerants can produce the greenhouse effect and destroy the ozone layer.

True

False

22. Huawei Monitoring System NetEco Cannot provide to third-party network management system SNMP Formal interface.

True

False

23. CORRECT TEXT

Huawei monitoring system ECC800. The collector can be inserted at most ____________ A power supply module.

24. The following are interfaces:.

DB25

RJ12

modbus

snmp

25. The humidifier used in Huawei's row-level precision air conditioner is an infrared humidifier.

True

False

26. CORRECT TEXT

In the dynamic environment monitoring system, the user queries the alarm information of the refrigeration equipment through the ____________ function.

27. The abbreviation for valve-regulated lead-acid battery is VRLA.

True

False

28. RER It is used to measure the use of renewable energy in the data center to promote the regeneration of solar, wind, and water energy, and the use of energy with no carbon emissions or very little carbon emissions.

True

False

29. CORRECT TEXT

____________ Not part of Huawei's monitoring system NETECO Provide monitoring functions.

30. CORRECT TEXT

If ups The capacity is 20KVA, Then in normal work, ups The front-end input capacity may be ____________.

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31. CORRECT TEXT

MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.

32. CORRECT TEXT

The following ____________ is not the basic function of low-voltage circuit breakers.

33. At present, storage batteries are mainly installed in racks and cabinets in data centers.

True

False

34. UPS The front-end input can be two mains, one main and one standby, or one mains and one diesel engine input.

True

False

35. CORRECT TEXT

According to the storage methods of different electrolytes in batteries, it can be divided into ____________ with ____________.

36. In the low-voltage power distribution system, N The role of the wire is to return the AC operating current.

True

False

37. CORRECT TEXT

The user can use the ____________ function to assign personnel to handle the fault.

38. CORRECT TEXT

Huawei Monitoring System NETECO The northbound interface can be accessed

____________.

39. CORRECT TEXT

In Huawei's dynamic environment monitoring system, it is at the data collection layer and can integrate the underlying components ____________. The equipment through which information is transmitted to the monitoring software is ____________.

40. CORRECT TEXT

The computer room air conditioner is suitable for scenarios ____________.