HCIA-Data Center Facility V2.0 Questions and Answers
pPUE is a data center PUE An extension of the concept, used to evaluate the energy efficiency of a local area of a data center or equipment And analysis.
At a certain atmospheric pressure and water vapor content, the air is cooled down. When the air reaches saturation, it will continue to cool down. The temperature at the time of condensation is ____________ .
Parameter representation upsPollution to the power grid.
The humidifier used in Huawei's row-level precision air conditioner is an infrared humidifier.
Through the query ____________, the user can understand the operation of the device.
The fastest transmission rate of the following communication interfaces is ____________ .
PUE The closer the value ____________, indicating that the energy efficiency status of the data center is good.
The type of compressor used by Huawei's air-cooled precision air conditioner is ____________ .
ABC Circuit breakers are mainly used IT Load front end, such as ups Inside the output cabinet.
The fuse can protect personal safety when the equipment leaks.
There are three different classifications of grounding forms in low-voltage power distribution systems, ____________ . The second capital letter represents ____________ .
Data centers usually use gas fire protection systems.
UPS Also known as AC uninterrupted power supply system, for online upsWhen the AC input is normal, the ____________ will supply power to the system.
The leakage protector is mainly divided into electronic type and electromagnetic type according to the action mode.
The following air conditioning, which is comfort air conditioning?
In the dynamic environment monitoring system, viewing the detailed alarm information can help locate the source of the alarm.
The general method of connecting lead-acid batteries is to string first and then parallel.
Huawei Monitoring System NETECO The northbound interface can be accessed ____________ .
In the data center power supply and distribution system, if a power outage occurs, it is generally caused by Complete the standby switch between mains and mains or mains and diesel generators.
In the dynamic ring monitoring system, it can be used to store high-definition images and provide large-scale storage media. The equipment used for long-term storage of video recording is ____________ .
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.
The gas fire extinguishing system consists of ____________ .
____________ Not part of Huawei's monitoring system NETECO Provide monitoring functions.
The three major indicators of air conditioning are ____________ .
When the mains input range is voltage:150-260VAC,frequency:45-60Hz,the following ups Working range ____________ It can work normally in the inverter state of the main circuit.
UPS The inverter component can realize the conversion from AC to DC.
For unsaturated air, dry bulb temperature, wet bulb temperature, A The relationship between point temperature is ____________ .
TN-S The three-phase unbalanced current in the low-voltage power distribution system makes the protection line PS Generate voltage to ground.
When the battery electrolyte leaks, ____________ treatment is more appropriate.
Environmentally friendly refrigerant R410A Refrigeration performance is better than non-refrigerant R22 better.
