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| Section | Objectives |
|---|---|
| Topic 1: Power Supply and Distribution System | - Battery Systems and Reliability - Power Distribution Unit (PDU) and Power Distribution Architecture - UPS System Principles and Configuration - Power Supply and Distribution System Architecture |
| Topic 2: Modular Data Center | - Huawei FusionModule Series - Modular Data Center Concepts and Benefits - Design, Delivery, and Installation |
| Topic 3: Data Center Infrastructure Management (DCIM) | - Energy Efficiency Management - Monitoring and Alarm Management - DCIM System Architecture |
| Topic 4: Data Center Facility Overview | - Huawei Data Center Facility Solution Portfolio - Typical Data Center Scenarios and Requirements - Data Center Facility Concepts and Development Trends |
| Topic 5: Cooling System | - In-Row and In-Rack Cooling Units - Cooling System Architecture and Design - Free Cooling Technologies - Air-Cooled and Water-Cooled Chillers |
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NEW QUESTION # 66
What does PUE (Power Usage Effectiveness) measure in a data center?
Answer: C
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 # 67
Through device management, you can view the information about
Answer: A,B,C,D
Explanation:
In Huawei smart module management (such as on the ECC800-Pro/WebUI),Device Managementis used to centrally view and maintain managed objects (UPS, SmartLi, rPDU, sensors, air conditioners, etc.).
TheOverviewpage provides a consolidated snapshot of a device's operating status, key parameters, running mode, and basic identification information so engineers can quickly judge whether the device is healthy and online. TheAlarmview lists active and historical alarms related to the device, supporting rapid fault isolation and verification after recovery. TheSignalview shows monitoring points and I/O status (including analog values and digital inputs/outputs where applicable), which helps engineers confirm sensor wiring, linkage logic, and real-time state changes during commissioning and troubleshooting. TheService periodinformation is used for lifecycle and maintenance planning, such as tracking service time, maintenance intervals, or component life indicators where supported, enabling preventive maintenance and reducing unexpected downtime. Therefore, Device Management supports viewing all four categories.
NEW QUESTION # 68
The NetEco can be deployed on any virtualization platform.
Answer: B
Explanation:
NetEco is an enterprise management application with specific runtime dependencies, including supported operating system versions, database/middleware compatibility, CPU/memory/storage requirements, and network/security prerequisites. Because of these dependencies, Huawei does not treat NetEco as "hypervisor- agnostic for any virtualization platform." In practice, NetEco deployment in virtualized environments is supported only when the virtualization stack meets Huawei's compatibility requirements, such as validated hypervisors/virtualization solutions, proper virtual hardware settings, and resource reservation rules to ensure stable performance (especially for alarm processing, historical data storage, and northbound integration tasks).
If deployed on an unverified virtualization platform, issues may occur such as clock drift, I/O latency, database performance bottlenecks, unstable NIC behavior, or unsupported VM device models, which can impact data collection, event correlation, and overall system stability. Therefore, the correct interpretation is that NetEco can be deployed onsupported/verifiedvirtualization platforms, not onanyvirtualization platform.
NEW QUESTION # 69
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: A
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. For M16x50 mm screws used on the +/N/- output cable terminals, the specified tightening/verification torque is 120 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 # 70
Which of the following can be used to start the inverter of the UPS5000-H?
Answer: A,B
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 # 71
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