Free Huawei H12-421-ENU Exam Dumps Questions & Answers

When the NeCol5000-A is under nitrogen pressure, the required nitrogen bottle must be equipped with a pressure reducing valve.

• A.  True
• B.  False

For storage batteries that have been stored for 18 months or longer, the battery that has not been recharged should be processed ().

• A.  Need to supplement the electricity treatment, use as soon as possible
• B.  Disposal
• C.  Need activation treatment, use as soon as possible
• D.  No need to deal with, use as soon as possible

Which of the following technology or scheme can effectively reduce the PUE? (Multiple choice)

• A.  Closed cold/hot passage
• B.  Increase battery capacity
• C.  Precise air supply
• D.  Efficient modular UPS

The following () characteristics are standard features of the NetCol 8000-C air conditioner.

• A.  Dual power supply
• B.  G4 grade filter
• C.  Humidification function
• D.  Water immersion sensor

Which of the following is supported by the AI/DI port on the access control actuator?

• A.  Electronic magnetic lock
• B.  Fingerprint reader
• C.  Open the button
• D.  IC card reader