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

In Huawei NetEco access design, the Web client is reached usingHTTPSto protect credentials and management data in transit. During initial deployment and commissioning, engineers access the NetEco login page by entering the server IP address followed by thedefault HTTPS service port. Huawei’s standard login method specifies that users open a browser and enterhttps://NetEco server IP:31943to access the NetEco login interface. This port is therefore treated as the default Web login port in typical on-premises NetEco deployments, and it is the baseline value referenced in installation and login guidance. Other ports may appear in specific tools, customized scenarios, version variants, reverse-proxy deployments, or when security policy requires port changes, but those are exceptions driven by planning or product packaging. For exam and commissioning purposes, the correct default login port is the one used by the NetEco Web client entry point under the standard deployment model:31943.

In Huawei SmartLi 3.0, the BCU acts as the cabinet-level “brain” of the lithium battery system, coordinating measurement, control, protection, and communication. Itmanages and supervises BMUsinside 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 supportscharge/discharge managementby 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 implementsintelligent voltage sharing and active current balancing, which helps equalize currents, improve utilization, and reduce uneven aging. For safety and reliability, the BCU providesfault 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 incorporatesinternal short-circuit risk predictionas part of its safety strategy. Finally,group capacity testingis supported as a maintenance function to verify usable capacity and system health.

Huawei data center facility design emphasizes controlling airflow paths to raise cooling efficiency and stabilize IT inlet temperatures. The hot aisle/cold aisle layout creates a predictable airflow direction: cold air is supplied to the front of IT racks (cold aisle), while hot exhaust air is isolated and returned to the cooling system (hot aisle). When aisle containment is added, it prevents hot and cold air from mixing, which directly improves cooling utilization, reduces overcooling demand, and lowers fan energy. This layout also supports more accurate temperature control, enabling higher supply air temperatures while still meeting server inlet requirements—an important lever for improving overall energy efficiency. Huawei modular and smart module concepts commonly standardize rack alignment, containment components, and sensor-based monitoring so the airflow system remains consistent as capacity scales. Compared with random rack placement or uncontrolled airflow, containment-based hot/cold aisle planning delivers measurable operational stability, simpler troubleshooting, and better conditions for capacity expansion without redesigning the entire cooling path.

The correct sequence prioritizeselectrical safety first, then mechanical disassembly. You mustconfirm the batteries are not discharging(Step 1) to avoid working under load. Next, the cabinet must be placed into a safe powered-down state byswitching off the battery circuit breaker and long-pressing the POWER ON/OFF button to power off the cabinet(Step 6). Only after the cabinet is safely powered down should you open up the working area byremoving the front covers of the faulty module and adjacent modules(Step 3). Then youturn off the ready switchon the battery management module (Step 2) to prevent the system from re-enabling the module unexpectedly during maintenance. After that, youloosen the securing bolts and pull out the battery management module about 10 cm(Step 5) to create operating space and ensure isolation for subsequent operations. With the cabinet safely stopped, you canremove the cables and copper barsconnected to the faulty module (Step 7), and finallyremove the baffle plate and pull out the faulty battery module(Step 4).