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| Section | Objectives |
|---|---|
| Topic 1: Data Center Facility Overview | - Data Center Facility Concepts and Development Trends - Typical Data Center Scenarios and Requirements - Huawei Data Center Facility Solution Portfolio |
| Topic 2: Data Center Infrastructure Management (DCIM) | - Monitoring and Alarm Management - Energy Efficiency Management - DCIM System Architecture |
| Topic 3: Cooling System | - Cooling System Architecture and Design - Air-Cooled and Water-Cooled Chillers - Free Cooling Technologies - In-Row and In-Rack Cooling Units |
| Topic 4: Modular Data Center | - Huawei FusionModule Series - Modular Data Center Concepts and Benefits - Design, Delivery, and Installation |
| Topic 5: Power Supply and Distribution System | - UPS System Principles and Configuration - Power Supply and Distribution System Architecture - Battery Systems and Reliability - Power Distribution Unit (PDU) and Power Distribution Architecture |
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NEW QUESTION # 78
Video management can connect to the third-party video surveillance subsystem and play historical videos.
Answer: B
Explanation:
In Huawei's data center O&M architecture, video is treated as an important auxiliary capability for security and remote operation. The Video Management function is designed not only to view live camera feeds, but also to integrate video resources into the same O&M workflow as alarms, access control events, and environmental monitoring. In typical deployments, the actual video storage and recording are handled by a third-party video surveillance subsystem (for example, an NVR/VMS platform). Huawei's video management function can connect to that third-party subsystem so that camera resources can be accessed in a unified interface, allowing operators to perform linkage operations such as "view video on alarm" and routine security inspection without switching platforms. Because historical recordings are stored by the surveillance subsystem, once the integration is established and permissions are correctly configured, operators can retrieve and play back historical video for event tracing, audit, and incident investigation. This supports closed-loop O&M: alarm/event occurs -> video verification -> root-cause confirmation -> maintenance action -> evidence retention.
NEW QUESTION # 79
In FusionModule solutions, what is the typical purpose of integrating fire protection as an optional subsystem?
Answer: A
Explanation:
Optional fire protection subsystems in FusionModule solutions provide localized smoke detection and suppression (e.g., gas-based) tailored to the modular unit's enclosed space, complementing (not replacing) overall building fire code compliance.
NEW QUESTION # 80
ECO mode is not recommended when the load is less than
Answer: D
Explanation:
ECO mode is designed to improve UPS efficiency by supplying the load mainly through the static bypass path when the mains is within the acceptable quality window, while keeping the inverter synchronized and ready to take over quickly if power quality degrades. However, when the load istoo light, the overall operating characteristics of the UPS system are less favorable for ECO operation. At low load levels, the benefits of ECO in reducing conversion losses are smaller, and the system becomes more sensitive to frequent transfers caused by minor mains fluctuations, which can increase transfer##and operational risk. In addition, very light loads can reduce the effectiveness of system self-check behaviors and may lead to less stable operating margins for parallel systems, power modules, and downstream distribution, depending on site conditions.
Therefore, Huawei O&M guidance sets a practical threshold and states thatECO mode is not recommended when the load is lower than 20%, helping ensure stable operation, fewer unnecessary transfers, and better overall power supply reliability for critical loads.
NEW QUESTION # 81
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 # 82
What does PUE (Power Usage Effectiveness) measure in a data center?
Answer: A
Explanation:
PUE = Total Facility Energy / IT Equipment Energy. A PUE closer to 1.0 indicates higher efficiency, as less energy is consumed by non-IT overhead such as cooling and power distribution losses.
NEW QUESTION # 83
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