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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCSP-Field-Data Center Facility V1.0 |
| Exam Number: | H20-923_V1.0 |
| Available Languages: | English, Chinese |
| Certificate Validity Period: | 3 Years |
| Exam Duration: | 90 minutes |
| Exam Price: | USD 300 |
| Related Certifications: | Huawei Certified Solution Specialist (HCSP) |
| Passing Score: | 600/1000 |
| Real Exam Qty: | 60 |
| Exam Format: | True/False, Drag-and-drop, Single-answer, Multiple-answer |
| Sample Questions: | Huawei H20-923_V1.0 Sample Questions |
| Exam Way: | Pearson VUE |
| Pre Condition: | None |
| Official Syllabus URL: | https://e.huawei.com/en/talent/exam/#/cert/6000000000000000020 |
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NEW QUESTION # 61
When the outdoor unit is installed at a position higher than the indoor unit, install an oil trap every five to six meters in the vertical direction along the gas pipe to ensure system reliability.
Answer: B
Explanation:
This statement is true. In split DX/precision cooling refrigerant systems, the "gas pipe" typically refers to thesuction linereturning refrigerant vapor (and entrained compressor oil) from the indoor evaporator to the outdoor unit/compressor. When theoutdoor unit is higher than the indoor unit, the suction line includes avertical riser. Oil naturally tends to settle and flow downward under gravity, so without proper piping measures, oil may accumulate in low points or fail to be carried upward consistently, leading topoor oil return.
Insufficient oil return can cause compressor lubrication issues, abnormal noise, overheating, reduced efficiency, and long-term reliability risks. Installingoil trapsat the bottom of the riser and thenevery 5-6 metersof vertical lift helps collect oil and allows it to be periodically swept upward by refrigerant velocity, maintaining stable oil circulation. This requirement is especially important in data center cooling because continuous operation and high availability demand reliable compressor lubrication and stable refrigerant flow under varying load conditions.
NEW QUESTION # 62
During wizard startup, when you enter the screen for selecting commissioning items for the first time, all items are selected by default. Which item is mandatory. You can deselect other commissioning items that are not mandatory.
Answer: B
Explanation:
In Huawei precision cooling commissioning, the wizard groups functional commissioning items so technicians can validate key subsystems efficiently. Thecooling system commissioningis mandatory because it verifies the primary control and protection loop that directly determines whether the unit can safely provide cooling capacity. This includes confirming the refrigeration or chilled-water cooling path can start and stop correctly, sensors and control logic are valid, and protection conditions (such as abnormal pressures
/temperatures, flow conditions, or interlocks) behave as expected. Without completing cooling-system commissioning, the unit's core purpose-stable temperature control for IT loads-cannot be assured, and the controller cannot reliably judge normal versus fault states during operation.
Other items (indoor fans, condensate pump, humidifier) are important butscenario-dependent: some sites do not use humidification, some drainage designs do not require an internal condensate pump, and fan checks can be handled as part of broader functional tests or may vary by redundancy configuration. Therefore, the wizard allows non-mandatory items to be deselected, but the cooling system commissioning must remain selected to complete a valid baseline commissioning workflow.
NEW QUESTION # 63
Which of the following statements is false about the advantages of the free cooling solution for data centers?
Answer: D
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 # 64
Which of the following are the functions of the SmartLi 3.0 battery control unit (BCU)?
Answer: A,B,C,D,E,F
Explanation:
In Huawei SmartLi 3.0, the BCU acts as the cabinet-level "brain" of the lithium battery system, coordinating measurement, control, protection, and communication. It manages and supervises BMUs inside the cabinet by collecting key operating data such as voltage, temperature, SOC, and SOH, and by aggregating module information for higher-level management. The BCU supports charge/discharge management by monitoring string current and controlling operating behaviors to keep the battery within safe electrical and thermal limits. To ensure consistent performance across parallel strings and cabinets, it implements intelligent voltage sharing and active current balancing, which helps equalize currents, improve utilization, and reduce uneven aging. For safety and reliability, the BCU provides fault diagnosis and protection, including handling events such as overvoltage, undervoltage, overcurrent, and overtemperature, and it can isolate abnormal loops when required. SmartLi 3.0 also incorporates internal short-circuit risk prediction as part of its safety strategy. Finally, group capacity testing is supported as a maintenance function to verify usable capacity and system health.
NEW QUESTION # 65
The NetEco northbound interface does not support the SNMP protocol. Only WebService interfaces are supported.
Answer: A
Explanation:
In Huawei's data center facility management architecture, the northbound interface of NetEco is designed specifically to integrate with upper-layer systems such as enterprise NMS platforms, SOC/monitoring centers, and customer unified O&M systems. To meet common industry integration practices, NetEco northbound capabilities are not limited to only one interface type. In addition to WebService-style interfaces used for richer data exchange and structured integration, NetEco also supports SNMP-based northbound integration, which is widely used for alarm forwarding, basic status monitoring, and interoperability with standard network management tools. SNMP is particularly common in mixed-vendor environments because it enables a lightweight and standardized method to deliver key alarms and events to a customer's central monitoring platform without requiring deep application coupling. Therefore, the statement that
"only WebService interfaces are supported and SNMP is not supported" is incorrect: NetEco northbound integration supports SNMP along with other northbound interface methods depending on the integration scenario and customer requirements.
NEW QUESTION # 66
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