Huawei Updated H20-923_V1.0 Exam Questions and Answers by adeline

For an in-room cooling solution that usesoverhead air supply with air ducts, sufficient vertical space is required to accommodate the ductwork, airflow distribution components (such as plenums, turning vanes, flexible connectors, and diffusers), cable trays/pipes that may share the overhead route, and the necessary maintenance clearance. If the net height is too low, the duct cross-section becomes constrained, which increases airflow resistance and static pressure, reduces delivered airflow volume, and can cause uneven air distribution. This leads to hot spots, higher fan power, and difficulty maintaining stable supply/return temperature control. In Huawei data center air-conditioning design guidance, overhead ducted supply is therefore matched with aminimum net floor height requirement of 4 m, ensuring ducts can be sized correctly for the target airflow, noise, and pressure limits while preserving safe installation and maintenance space. A 3 m net height is generally suitable for non-ducted in-room layouts, but becomes insufficient once full overhead ducting is introduced.

In the FusionDC1000A IT scenario, the external input power cables are designed to enter the power distribution system throughdedicated cable inlets at the bottomof the Power PDB. During installation, the procedure requires opening the Power PDB, removing the plugs from thebottom 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 isbottom cabling.

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. AStartup engineerfocuses on commissioning activities such as obtaining startup authorization, performing initial configuration, and completing functional verification. AService engineerhandles routine maintenance, inspections, troubleshooting, part replacement guidance, and closure of service cases. AProject managercoordinates delivery milestones, resource planning, and overall service execution to ensure acceptance criteria are met. AnInventory operations managermanages materials/parts flow, tracking, and availability to support timely repair and maintenance. TheDOC (Delivery/Dispatch Operations Center)role supports centralized operations such as work order dispatching, progress supervision, and process compliance. Aservice manager of a representative officetypically 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.