Free PDF 2026 Huawei Perfect Test H20-923_V1.0 Collection Pdf

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Huawei H20-923_V1.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Introduction to Huawei Precision Air Conditioners: This topic introduces Huawei's precision air conditioning product line, covering unit types, operating principles, key components, and their role in maintaining optimal data center temperatures.
Topic 2
  • SmartLi 3.0 (Short-Term Backup Power) Product Introduction: This topic introduces Huawei's SmartLi 3.0 lithium-based short-term backup power solution, covering its product architecture, key features, and application scenarios.
Topic 3
  • FusionCol8000-C (110-440) In-Room Chilled Water Smart Cooling Product: This topic covers the FusionCol8000-C chilled water in-room cooling unit, including its product design, chilled water system integration, smart control features, and deployment scenarios.
Topic 4
  • Training on FusionModule2000 Deployment and Maintenance: This topic covers the practical aspects of setting up and maintaining the FusionModule2000, including installation procedures, configuration steps, and routine maintenance tasks.
Topic 5
  • Huawei DCIM Installation and Deployment Lab Guide: This topic is a guided hands-on section covering the step-by-step installation and initial deployment procedures for Huawei DCIM systems in a lab environment.
Topic 6
  • Huawei DCIM Lab Guide: This topic is a broader practical lab section covering operational tasks, configuration, and troubleshooting exercises across Huawei DCIM platforms to build field-level proficiency.
Topic 7
  • Huawei Data Center Facility Solutions: This topic provides an overview of Huawei's end-to-end data center facility portfolio, covering the key product lines and solution architectures used in modern data center environments.
Topic 8
  • SmartLi 3.0 (Short-Term Backup Power) Maintenance Operations: This topic addresses the routine and corrective maintenance tasks for SmartLi 3.0, including battery management, fault handling, and health monitoring procedures.
Topic 9
  • SmartLi 3.0 (Short-Term Backup Power) Installation: This topic covers the installation procedures for the SmartLi 3.0 system, including hardware setup, cabling requirements, and commissioning steps.
Topic 10
  • Basic Knowledge of Power Distribution: This topic covers the fundamental concepts of power distribution within a data center, including electrical principles, distribution topologies, and key components such as switchgear and PDUs.
Topic 11
  • iManager NetEco 6000 Product Introduction: This topic covers the iManager NetEco 6000 platform, explaining its capabilities as a network and infrastructure management tool used within Huawei data center environments.
Topic 12
  • Huawei FusionCol8000-A Lab Guide: This is a heavily weighted practical lab section focused on the hands-on deployment, configuration, commissioning, and maintenance of the FusionCol8000-A cooling system in a field-representative setting.
Topic 13
  • Training on FusionDC1000A: This topic focuses on the FusionDC1000A prefabricated data center solution, covering its product features, deployment methods, and operational maintenance requirements.
Topic 14
  • Data Center Cooling Solutions: This topic provides an overview of cooling technologies and strategies used in data centers, including air-side and water-side cooling architectures and Huawei's approach to thermal management.
Topic 15
  • UPS Basic Knowledge: This topic introduces the foundational concepts of Uninterruptible Power Supply systems, including operating modes, topology types, and their role in ensuring power continuity for data center loads.
Topic 16
  • FusionCol8000-A230 In-Room Air Cooled (Air-Cooled Fan Wall) Smart Cooling Product: This topic addresses the FusionCol8000-A230 air-cooled fan wall solution, covering its working principles, product specifications, installation considerations, and smart cooling management capabilities.
Topic 17
  • Huawei Other DCIM Tools: This topic explores additional Huawei Data Center Infrastructure Management tools beyond the ECC800-Pro and NetEco 6000, covering their functions and how they complement the overall DCIM ecosystem.

Huawei HCSP-Field-Data Center Facility V1.0 Sample Questions (Q17-Q22):

NEW QUESTION # 17
What is the upstream input voltage range of the UPS5000-H?

Answer: D

Explanation:
For the Huawei UPS5000-H (380/400/415 V class), "upstream input voltage range" refers to the acceptableAC mains (rectifier) line-to-line input voltage windowthat the UPS can tolerate while maintaining operation. Huawei specifies a wide mains input voltage range of138-485 Vac (line voltage)to improve adaptability to weak or fluctuating power grids and to reduce unnecessary battery usage when the utility voltage sags or rises within allowable limits. Within this overall window, the UPS may applyderating rulesat lower voltages (for example, full-load operation is typically guaranteed only above a higher threshold), but the upstream input can still remain connected and the UPS continues supplying the load according to its control strategy and available capacity. The other options do not match the upstream AC input range:360-600 Vis commonly associated withbattery DC voltage ranges,220-240 Vis single-phase class, and380-415 Vrepresentsrated voltage, not the full acceptable upstream range.


NEW QUESTION # 18
Which of the following statements is false about how to start an electric heater?

Answer: C

Explanation:
Huawei precision cooling logic separates heater enablement into distinct control strategies to avoid unnecessary heating and to keep humidity control stable. InLow temperature heating, the heater is governed purely by the room temperature control demand: if temperature is below the heating threshold (or below setpoint with heating conditions met), the heater can start regardless of whether dehumidification is enabled, which matches statement D. InDehumidification heating, the heater is not a general low-temperature heater; it is an auxiliary function used to prevent overcooling during dehumidification and to maintain temperature while the unit dehumidifies. Therefore, the heater in this mode is permitted to start only when thedehumidification function is activeand temperature conditions require compensation, which matches statement B. Statement C is false because it incorrectly claims thatanyof the three selections will start heating automatically whenever room temperature is low; that is not true for "Dehumidification heating" unless dehumidification is actually enabled and running.


NEW QUESTION # 19
Which O&M practice is most effective for identifying cooling inefficiency caused by airflow problems in an operating data center?

Answer: A

Explanation:
Huawei facility O&M methods emphasize using monitored operating data to locate inefficiencies before they become faults. Airflow-related cooling inefficiency commonly appears as hot spots at rack inlets, elevated return air temperature fluctuations, abnormal fan speed increases, or uneven temperature distribution across aisles. By trending rack inlet temperature sensors alongside cooling unit supply
/return temperatures and fan speed or airflow commands, operations teams can distinguish between insufficient cooling capacity and poor airflow organization. Recirculation (hot air returning to rack inlets) often raises localized inlet temperatures without a proportional rise in room average temperature, while bypass (cold air short-circuiting back to returns) reduces cooling effectiveness and can drive fans to higher speeds unnecessarily. Data-driven checks support targeted corrective actions such as sealing cable openings, adjusting floor tile placement, restoring containment integrity, balancing airflow, or optimizing setpoints. This approach improves thermal stability, prevents overcooling, reduces energy waste, and aligns with Huawei's emphasis on integrated monitoring and closed-loop optimization for reliable, efficient operation.


NEW QUESTION # 20
In IT scenarios, which of the following are the power supply and distribution components of the FusionDC1000A?

Answer: A,B,C

Explanation:
In the FusionDC1000A IT scenario, the power chain is built around an AC input, conditioned backup power, energy storage, and final distribution to the IT racks.Integrated UPSis the core power-conditioning component, providing voltage and frequency stabilization and uninterrupted supply during mains disturbances. The UPS works together withSmartLi, Huawei's lithium battery system, which serves as the energy storage unit to sustain the load during outages and to support controlled shutdown or generator switchover. After UPS output, power is delivered to the IT loads through thePower PDB, which performs downstream distribution, branch protection, and organized cable termination toward rack PDUs or IT equipment feeders. By contrast, anAC/DC power systemis typically associated with DC bus supply used in telecom-oriented or dedicated DC load scenarios, not the standard IT scenario architecture of FusionDC1000A that is centered on UPS plus battery plus AC distribution. Therefore, the correct components for IT scenarios are SmartLi, Power PDB, and Integrated UPS.


NEW QUESTION # 21
When tightening the screws (M16x50 mm) for the output power cables of lithium battery cabinets, what torque should be used to tighten and verify the screws?

Answer: B

Explanation:
For Huawei SmartLi lithium battery cabinets, the output power cable termination uses high-current DC conductors, so the mechanical fastening torque is strictly specified to ensure both safety and long-term reliability. ForM16x50 mm screwsused on the+/N/# output cable terminals, the specified tightening
/verification torque is120 N m. This torque requirement is defined to achieve the correct clamping force between the DT terminal lug and the cabinet busbar/terminal surface. If the torque is below the requirement, contact resistance increases, which can lead to abnormal heating during charge/discharge, voltage drop, alarm events, and accelerated oxidation at the joint. If the torque is excessive, it can damage threads, deform the lug or busbar contact area, and introduce hidden mechanical stress that may loosen over thermal cycles. During commissioning and routine maintenance, technicians use a calibrated torque wrench to tighten and then re- verify each connection to the specified value to prevent hotspots and ensure stable operation under peak current conditions.


NEW QUESTION # 22
......

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