H12-421 Exam Question 56
When the UPS is parallel, it is necessary to check the input phase sequence of each UPS main bypass, but the output phase sequence is not required.
H12-421 Exam Question 57
When installing the Huawei air-cooled air conditioner, the refrigerant pipeline positive pressure is required to be () hours.
H12-421 Exam Question 58
The Netcol 5000-A35kW uses an electronic expansion valve.
H12-421 Exam Question 59
Deploying on demand and avoiding over-investment is the only advantage of a modular data center.
H12-421 Exam Question 60
The PDU8000 intelligent power meter parameter display is abnormal, which may be caused by (). (Multiple choice)