Online Huawei H20-923_V1.0 Practice Test

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Huawei H20-923_V1.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 2
  • 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 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
  • Huawei UPS5000H Lab Guide: This is a heavily weighted hands-on lab section covering practical installation, commissioning, parameter configuration, and maintenance operations for the UPS5000H in a field-simulated environment.
Topic 5
  • 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.
Topic 6
  • 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 7
  • 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 8
  • 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 9
  • 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 10
  • 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 11
  • 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 12
  • 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 13
  • 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 14
  • Introduction to Huawei DCIM Controller ECC800-Pro: This topic introduces the ECC800-Pro Data Center Infrastructure Management controller, covering its architecture, core functions, and role in monitoring and managing data center facility equipment.
Topic 15
  • 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 16
  • UPS5000H Product Training: This topic provides in-depth product training on the Huawei UPS5000H, covering its technical specifications, system architecture, operating modes, and configuration options.
Topic 17
  • 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 18
  • 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.

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Huawei HCSP-Field-Data Center Facility V1.0 Sample Questions (Q68-Q73):

NEW QUESTION # 68
Which cooling architecture is most associated with Huawei's row-based/in-row cooling solutions for high-density cabinets?

Answer: A

Explanation:
FusionCol represents Huawei's row/cabinet-level cooling solutions designed to bring cooling closer to high-density IT loads, improving cooling efficiency versus traditional room-level (CRAC) cooling for such scenarios.


NEW QUESTION # 69
After replacing the fan, choose "Menu > _____ > Performance Maintenance" on the main screen to enter the "Performance Maintenance" screen and clear the accumulated runtime of the indoor fan.

Answer: A

Explanation:
In Huawei room air conditioner and precision cooling unit O&M, fan replacement is treated as a maintenance activity that must be recorded in the controller so lifecycle management remains accurate. The controller tracks accumulated runtime for wear components such as indoor fans to support preventive maintenance planning, alarm thresholds, and performance analysis. After a fan is replaced, the old runtime value must be cleared so the system can correctly measure the new fan's service hours, avoiding premature "maintenance due" prompts or misleading reliability assessments. This function belongs to the maintenance function set rather than alarm viewing, parameter settings, or basic running status. Therefore, the correct navigation is through Menu > Maint > Performance Maintenance, where the technician can locate the indoor fan runtime item and reset/clear it after confirming the replacement. Performing this step ensures consistent O&M records, supports correct maintenance intervals, and helps troubleshooting by aligning future fan- related alarms with the actual operating hours of the newly installed component.


NEW QUESTION # 70
Which of the following statements is false about the advantages of the free cooling solution for data centers?

Answer: B

Explanation:
Free cooling is a mainstream energy-saving concept in data center cooling design, used to reduce chiller compressor runtime by leveraging low outdoor temperatures (air-side) or low cooling-water temperatures (water-side) during suitable seasons. Therefore, describing the technology as "not mature enough and should be used with caution" is the false statement when discussing its advantages. In practice, free cooling has broad industry adoption and is considered a proven approach when applied with correct engineering, such as proper filtration, anti-condensation control, heat exchanger selection, and automatic control strategies. Its advantage is that it can directly utilize the outdoor "cold source" to remove heat, which significantly reduces cooling power consumption compared with full mechanical refrigeration, improving overall energy efficiency and supporting lower PUE targets. It also makes full use of seasonal and day-night temperature differences: the system dynamically switches among free cooling, partial free cooling, and mechanical cooling to balance reliability and efficiency. The key point is maturity: the benefit of free cooling comes from well-established principles and widely implemented architectures, not experimental technology.


NEW QUESTION # 71
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: D

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 # 72
For hourly statistics reports, data of up to how many days can be queried? For monthly statistics reports, data of up to how many years can be queried?

Answer: A

Explanation:
In Huawei NetEco statistical reporting, the query range is constrained by the report data retention policy and how summary data is stored. Forhourly statistics, the platform keeps a limited window of high-granularity data to balance storage consumption and performance. The hourly report retention is120 hours, which equals5 days. That is why hourly statistics queries are limited to5 days-beyond that window, hourly granularity is no longer retained in the report database for direct querying. For longer time horizons, NetEco relies on lower- granularity summaries (daily/weekly/monthly/yearly). Formonthly statistics, the platform supports long-term trend analysis and KPI tracking, and the maximum historical horizon aligns with the long-term statistics retention boundary used by NetEco reporting, which isup to 5 years. This design ensures fast query response, manageable database growth, and clear separation between short-term operational detail (hourly) and long- term management analysis (monthly/yearly).


NEW QUESTION # 73
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