H12-411_V2.0 Practice Exam Questions with Answers HCIA-Data Center Facility V2.0 Certification

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

same MCB Rated ultimate short-circuit breaking capacity of circuit breaker LCU Generally less than the rated operating short-circuit breaking capacity LCS.

In the low-voltage power distribution system,PE The function of the line is to provide a path for the fault current when the power supply system fails.

____________ can complete the conversion from DC to AC.

The air-conditioning energy efficiency ratio is the ratio of the effective input power to the cooling capacity, and its value is W/W Express.

During the construction process, if there is an object falling or hitting, it should be used ____________ .

There are three different classifications of grounding forms in low-voltage power distribution systems, ____________ . The second capital letter represents ____________ .

Huawei Monitoring System NetEco Only the infrastructure of a single data center can be managed, and the centralized and unified management of multiple geographically divided data center infrastructures is not possible.

International Electrotechnical Commission ____________. The specified contact voltage limit is ____________V, And stipulate 25V. The following does not need to consider the prevention Safety measures to prevent electric shock.

In the data center power supply and distribution system, the low-voltage circuit breaker with three-stage protection feature is used for.

The increase of cabinet power density will lead to the emergence of local hot spots in the computer room, and row-level air conditioners can solve local problems. The hot spot is too high.

____________ After starting, the alarm will send out a strong sound and light alarm signal, which has reached the purpose of reminding the on-site personnel to pay attention.

The dynamic environment monitoring system only has a secondary structure.

The possible functions of the dynamic loop monitoring system include ____________ .

The components of Huawei's dynamic environment monitoring system are ____________ .

RER It is used to measure the use of renewable energy in the data center to promote the regeneration of solar, wind, and water energy, and the use of energy with no carbon emissions or very little carbon emissions.

The following ____________ is not the basic function of low-voltage circuit breakers.

Huawei Monitoring System NETECO Support hierarchical network management function.

____________ The main function is electric energy distribution, which distributes the front-end electric energy to various types of electrical equipment according to requirements, standards and

specifications, such as ups, Air conditioning, lighting system, etc.

The condensate of the air conditioner is formed by condensation after the air warning surface cooler cools down.

____________ Not part of Huawei's monitoring system NETECO Provide monitoring functions.

The following are air-cooled row-level air conditioners ____________ .

The general method of connecting lead-acid batteries is to string first and then parallel.

The following ____________ Yes UPS N The advantages of the system.

The following ____________ options do not belong to the characteristics of direct air-cooled air-conditioning.