H12-411: HCIA-Data Center Facility

By Huawei · Browse Mode
About the Exam

HCIA-Data Center Facility is Huawei's associate-level certification for people interested in data center facility technologies. The exam covers EHS, data center facility fundamentals, power distribution, UPS, Huawei DC power systems, batteries, air conditioning, monitoring systems, and other facility subsystems. Passing demonstrates basic deployment and O&M capability for junior implementation engineers and junior O&M engineers.

Exam Topics

  • Cloud Computing Basics0%
  • HUAWEI CLOUD Overview0%
  • Compute Cloud Services0%
  • Network Cloud Services0%
  • Storage Cloud Services0%
  • Huawei Cloud O&M Basics0%
  • Database0%
  • Security0%
  • CDN0%
  • EI Services0%

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Last updated April 22, 2026 at 9:39 PM

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QuestionQ1

Huawei Cloud O&M Basics

During a data-center capacity expansion, five devices—a, b, c, d, and e—are added. Their power ratings are 3 kW, 4 kW, 6 kW, 7 kW, and 10 kW respectively, and the rated voltage is 220 V. A new power-distribution box is configured for the five devices as shown. Match devices c, d, and e to the wiring terminals in the power-distribution box.

Question Image

Drag & Drop
Connects to QF4
Connects to QF5
Connects to QF6
Explanation

The phase loads must be balanced. Devices a and b already place 3 kW on L1 and 6 kW on L2. Connecting e (7 kW) to QF4/L1, d (4 kW) to QF5/L2, and c (10 kW) to QF6/L3 results in 10 kW on each phase.

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QuestionQ2

EI Services

Which of the following are functions of a transformer?

Choose three
Explanation

A transformer can convert voltage and current according to its turns ratio, while maintaining the same AC frequency. Separate primary and secondary windings can also provide galvanic isolation.

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QuestionQ3

Network Cloud Services

Which of the following constitute subsystems of the integrated cabling system?

Choose three
Explanation

Integrated cabling includes work-area, management, and campus subsystems. The campus subsystem provides the backbone connection between buildings, while the management subsystem handles cabling distribution and administration. Building management is an application or automation system supported by cabling, rather than a cabling subsystem.

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QuestionQ4

Cloud Computing Basics

STS and ATS are used to switch between two inputs.

Explanation

Static transfer switches (STS) and automatic transfer switches (ATS) transfer an electrical load between two available power inputs.

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QuestionQ5

Huawei Cloud O&M Basics

The ATS inputs can be connected to two mains, with one active and the other on standby. The two inputs can also be a main supply and a diesel generator.

Explanation

Automatic transfer switches transfer loads between normal and alternate power sources. These may be two utility/mains feeds or a utility supply and a generator source.

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Topics covered
Cloud Computing BasicsHUAWEI CLOUD OverviewCompute Cloud ServicesNetwork Cloud ServicesStorage Cloud ServicesHuawei Cloud O&M BasicsDatabaseSecurityCDNEI Services
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