最新的Huawei HCIA-Data Center Facility V1.0 - H12-411免費考試真題
Environmental refrigerant R410a refrigeration performance better than non-environmental refrigerant R22.
正確答案: A
The following () is the correct description of 6 fixed VRLA single battery series. The rated capacity is 150Ah.
正確答案: B
Huawei NetEco monitoring system does not support remote door open.
正確答案: A
Access control system can only set whether the user can open the door, can not be set when to open the door.
正確答案: A
There are three different categories of earthing (TN, TT and IT) in low voltage distribution systems. The second capital letter represents ().
正確答案: B
Gas fire protection systems are fire extinguishing systems that inject gas (including steam, aerosol) as a fire extinguishing medium.
正確答案: B
The features of UPS are (). (Multiple Choice)
正確答案: A,B,C,D
What should be used during construction when low-voltage live working(below 1kV)? (Multiple choice)
正確答案: A,C,D
Dynamic environment monitoring system can be deployed in medium and large modular data center small modular data center, container data center.
正確答案: B
R410a refrigerant in the moment of spray out, can frostbite human skin and deeper muscles in a very short period of time and cause frostbited dermal necrosis.
正確答案: B
Which of the following belongs to the indirect-contact heat and humidity treatment equipment? (Multiple Choice)
正確答案: A,B,C
Gas fire extinguishing system are composed of () and other subsystems. (Multiple choice)
正確答案: A,B,C,D
At present, batteries are installed in data centers mainly in rack-mounted and tank-mounted installations.
正確答案: B
UPS inverter components can achieve the conversion from AC to DC.
正確答案: A