Huawei H12-411 Online Practice Questions and Exam Preparation

Huawei H12-411 Online Questions & Answers

• Question 101:

  Which of the following components converts AC to DC in a UPS?

  A. Inverter
  B. Rectifier
  C. Filter
  D. Battery
  B. Rectifier

• Question 102:

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

  1200

• Question 103:

  The valve-controlled sealed lead-acid battery safety valve has ____________ Function.

  regulate the internal and external pressure of the battery, filter the acid mist, and prevent the internal pollution of the battery

• Question 104:

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

  A. True
  B. False
  A. True

• Question 105:

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

  2

• Question 106:

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

  alarm management

• Question 107:

  When the data center temperature rises above the design range, which component detects the change first?

  A. Condenser
  B. Humidity sensor
  C. Temperature sensor
  D. Evaporator
  C. Temperature sensor

• Question 108:

  Use POE When interface, it has two functions of communication and power supply.

  A. True
  B. False
  A. True

• Question 109:

  Under the same load conditions,ups The backup time is mainly determined by the battery capacity and the number of battery cells. The larger the battery capacity, the longer the backup time.

  A. True
  B. False
  A. True

• Question 110:

  Sensible heat ratio=Sensible heat/Full heat/Sensible heat/(Sensible heat+Latent heat).

  A. True
  B. False
  A. True