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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCSP-Field-Data Center Facility V1.0 |
| Exam Number: | H20-923_V1.0 |
| Exam Duration: | 90 minutes |
| Exam Price: | 100 USD |
| Available Languages: | English |
| Real Exam Qty: | 60 |
| Related Certifications: | HCSP-Field-Data Center Facility (Modular DC) V1.0 HCSP-Field-Data Center Facility (Power) V1.0 |
| Exam Format: | True/False questions, Multiple-answer questions, Single-answer questions |
| Certificate Validity Period: | 3 years |
| Passing Score: | 600 out of 1000 |
| Recommended Training: | Huawei Official Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Huawei H20-923_V1.0 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | Basic knowledge of data center infrastructure, power and cooling systems; recommended to have HCIA-Data Center Facility certification or equivalent experience |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/#/specialistCert |
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NEW QUESTION # 24
Which layout principle best aligns with Huawei data center facility design for improving cooling efficiency and reducing mixing of hot and cold air?
Answer: A
Explanation:
Huawei data center facility design emphasizes controlling airflow paths to raise cooling efficiency and stabilize IT inlet temperatures. The hot aisle/cold aisle layout creates a predictable airflow direction: cold air is supplied to the front of IT racks (cold aisle), while hot exhaust air is isolated and returned to the cooling system (hot aisle). When aisle containment is added, it prevents hot and cold air from mixing, which directly improves cooling utilization, reduces overcooling demand, and lowers fan energy. This layout also supports more accurate temperature control, enabling higher supply air temperatures while still meeting server inlet requirements--an important lever for improving overall energy efficiency. Huawei modular and smart module concepts commonly standardize rack alignment, containment components, and sensor-based monitoring so the airflow system remains consistent as capacity scales. Compared with random rack placement or uncontrolled airflow, containment-based hot/cold aisle planning delivers measurable operational stability, simpler troubleshooting, and better conditions for capacity expansion without redesigning the entire cooling path.
NEW QUESTION # 25
What is the upstream input voltage range of the UPS5000-H?
Answer: A
Explanation:
For the Huawei UPS5000-H (380/400/415 V class), "upstream input voltage range" refers to the acceptable AC mains (rectifier) line-to-line input voltage window that the UPS can tolerate while maintaining operation. Huawei specifies a wide mains input voltage range of 138?85 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 apply derating rules at 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?00 V is commonly associated with battery DC voltage ranges, 220?40 V is single-phase class, and
380?15 V represents rated voltage, not the full acceptable upstream range.
NEW QUESTION # 26
Which strategy most directly improves data center energy performance without compromising reliability when properly engineered and monitored?
Answer: C
Explanation:
Huawei green data center concepts focus on reducing energy consumption through engineering controls rather than sacrificing resilience. Raising the allowable supply air temperature is a proven efficiency lever because it reduces compressor workload, expands economization opportunities where applicable, and can reduce fan energy when airflow is optimized. However, it must be implemented with airflow management-especially hot/cold aisle containment-to ensure server inlet temperatures remain within safe limits. Adaptive control is critical: monitoring rack inlet temperatures, cooling unit performance, and environmental conditions allows the system to dynamically adjust cooling output, fan speed, and setpoints to match real IT load. This avoids the common inefficiency of "overcooling for safety." When combined with standardized O&M procedures, alarm thresholds, and continuous trend analysis, the strategy improves overall energy performance while preserving reliability and service continuity. In contrast, permanent oversizing or forcing all redundant systems to run fully loaded wastes energy and can reduce operating efficiency. Properly engineered, monitored optimization delivers efficiency gains with controlled operational risk.
NEW QUESTION # 27
Which of the following can be used to start the inverter of the UPS5000-H?
Answer: A,D
Explanation:
For the Huawei UPS5000-H, inverter startup is executed through the UPS's own control interfaces, which provide the "Running Control / Inv. ON" operation with the required confirmations and permissions. The UPS LCD (MDU touchscreen) supports inverter startup through menu operations such as selecting inverter start functions and confirming the action after authentication. The UPS WebUI also provides the same operational control path, where an operator logs in and issues the Inv. ON command under the UPS monitoring/running control pages. These two interfaces are part of the UPS monitoring and control design and are explicitly used for commissioning and routine O&M actions.
By contrast, ECC (data center controller) and NetEco (management platform) are mainly used for site-level monitoring, alarm collection, visualization, reporting, and centralized management.
While they can display UPS status and alarms (and may integrate with UPS data), inverter startup is defined as a UPS running control operation performed on the UPS's LCD or WebUI control plane to ensure proper authorization, safety checks, and command traceability.
NEW QUESTION # 28
The software installation package does not need to be downloaded for the preinstalled server.
Answer: B
Explanation:
In Huawei delivery scenarios, apreinstalled servermeans the target software (for example, the NetEco platform and its required runtime components) has already been deployed and integrated on the server image before it is handed over for on-site commissioning. Because the installation media has already been applied, the on-site engineer's work typically shifts from "software installation" to "environment verification and initialization," such as confirming OS/service status, checking resource allocation, validating database and middleware health, verifying network planning (IP, gateway, DNS/NTP as required), and completing application-level initialization (site creation, user/role configuration, northbound interface settings, and device
/model import if needed). In this case,downloading the full installation package is not a mandatory stepfor commissioning, because the package is mainly required when performing a fresh installation or reinstall
/upgrade. However, standard practice is still to prepare supporting materials (patches, licenses, and compatibility documents) and ensure the preinstalled version matches the project baseline before acceptance.
NEW QUESTION # 29
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