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| Section | Objectives |
|---|---|
| Topic 1: Data Center Facility Overview | - Huawei Data Center Facility Solution Portfolio - Data Center Facility Concepts and Development Trends - Typical Data Center Scenarios and Requirements |
| Topic 2: Modular Data Center | - Huawei FusionModule Series - Design, Delivery, and Installation - Modular Data Center Concepts and Benefits |
| Topic 3: Cooling System | - Air-Cooled and Water-Cooled Chillers - Free Cooling Technologies - Cooling System Architecture and Design - In-Row and In-Rack Cooling Units |
| Topic 4: Power Supply and Distribution System | - Battery Systems and Reliability - Power Distribution Unit (PDU) and Power Distribution Architecture - Power Supply and Distribution System Architecture - UPS System Principles and Configuration |
| Topic 5: Data Center Infrastructure Management (DCIM) | - Energy Efficiency Management - Monitoring and Alarm Management - DCIM System Architecture |
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NEW QUESTION # 94
During routine maintenance of the lithium battery cabinet, which of the following areas should be protected from electric shocks caused by exposed hands or metal objects?
Answer: A,B,C,D,E
Explanation:
In a lithium battery cabinet, any exposed conductive part that is electrically connected to the DC power path can present shock and arc risk, especially when technicians are using tools in a narrow space. Thegeneral positive/negative terminalsare the cabinet-level high-energy connection points, and accidental contact or bridging with a metal object can cause severe DC arcing, burns, and equipment damage. Thebattery positive and negative terminalson individual modules are also hazardous because each module contributes to the total string voltage and fault current capability. In addition, theshort-circuit copper bar between battery modulesis a direct conductive link in the series/parallel connection; it can be energized and can create an instant short circuit if contacted by tools, jewelry, or loose hardware. Huawei maintenance safety practice therefore requires insulating covers, protective shields, and strict tool control to prevent exposed hands or metal objects from contactinganyof these areas. Protecting all listed points reduces electric shock risk, prevents arc flash/arc burn incidents, and avoids unintended cabinet trips or permanent damage to terminals and busbars.
NEW QUESTION # 95
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 # 96
Which of the following are the user roles of Power Partner?
Answer: A,B,C,D,E,F
Explanation:
Power Partner is Huawei Digital Power's partner service platform used to support delivery, commissioning, maintenance, and service operations across the full lifecycle of a project. To match real project workflows, the platform defines multiple user roles that align with different responsibilities and permission scopes. A Startup engineer focuses on commissioning activities such as obtaining startup authorization, performing initial configuration, and completing functional verification. A Service engineer handles routine maintenance, inspections, troubleshooting, part replacement guidance, and closure of service cases. A Project manager coordinates delivery milestones, resource planning, and overall service execution to ensure acceptance criteria are met. An Inventory operations manager manages materials/parts flow, tracking, and availability to support timely repair and maintenance. The DOC (Delivery/Dispatch Operations Center) role supports centralized operations such as work order dispatching, progress supervision, and process compliance. A service manager of a representative office typically oversees regional service quality, governance, and authorization control, ensuring the right people have the right access and that services are delivered according to Huawei process requirements.
NEW QUESTION # 97
Which of the following is the cabling mode of external power cables in IT scenarios of the FusionDC1000A?
Answer: A
Explanation:
In the FusionDC1000A IT scenario, the external input power cables are designed to enter the power distribution system through dedicated cable inlets at the bottom of the Power PDB. During installation, the procedure requires opening the Power PDB, removing the plugs from the bottom cable holes, and routing the external input power cables into the cabinet through these bottom entries before arranging them along the nearby cable support/bridge inside the Power PDB area.
After the cables are terminated (for example, L1/L2/L3/N and PE), the bottom cable entries are resealed using waterproof sealing materials to maintain enclosure protection performance. This bottom-entry method supports reliable mechanical routing for thick/armored power cables, reduces bending stress, helps maintain orderly segregation from signal cabling, and improves on- site safety by guiding high-current cables through a controlled inlet path. Therefore, the correct cabling mode for external power cables in FusionDC1000A IT scenarios is bottom cabling.
NEW QUESTION # 98
What does PUE (Power Usage Effectiveness) measure in a data center?
Answer: D
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 # 99
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