The second format is a web-based practice exam which offers a flexible and accessible option for students trying to assess and improve their preparation for the Huawei Certification Exams. The H20-923_V1.0 web-based practice test can be accessed online through browsers like Firefox, Microsoft Edge, Google Chrome, and Safari. Customers need a stable internet connection in order to access web-based formats easily without facing issues.
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NEW QUESTION # 20
What does a red SPD (Surge Protective Device) indicator signify?
Answer: B
Explanation:
A red indicator means the internal protection component has degraded or disconnected after absorbing surge energy, and the SPD can no longer provide rated protection, leaving downstream loads exposed to surge risk. Immediate replacement following safe isolation procedures is required.
NEW QUESTION # 21
ECO mode is not recommended when the load is less than
Answer: B
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 is too 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 and operational risk. In addition, very light loads can reduce the effectiveness increase transfer 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 that ECO 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 # 22
In a data center fire protection design, which approach best matches Huawei facility practice for protecting IT rooms while minimizing secondary damage to IT equipment?
Answer: C
Explanation:
Huawei data center facility design typically follows a layered fire protection concept: early detection, controlled alarm linkage, and suppression methods that protect equipment and ensure personnel safety. A smoke detection system (often combined with staged alarms) provides early warning so operators can verify events and initiate emergency procedures. For the IT white space, a clean-agent gas extinguishing system is preferred because it suppresses fire without leaving residue and significantly reduces the risk of corrosion or contamination compared with powder-based agents. The extinguishing system is normally integrated with linkage/interlock controls: audible/visual pre- discharge alarms, time delay, emergency abort, door access control logic, and HVAC shutdown or damper control to help maintain agent concentration. This coordinated mechanism reduces false discharge risk while preserving a reliable automatic response if a real fire develops. In contrast, relying only on manual extinguishers is too slow for rapid fire growth, and water sprinklers alone can cause substantial collateral damage to servers and power equipment.
NEW QUESTION # 23
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 # 24
The software installation package does not need to be downloaded for the preinstalled server.
Answer: B
Explanation:
In Huawei delivery scenarios, a preinstalled server means the target software (for example, the NetEco platform and its required runtime components) has already been deployed and integrated on the server image before it is handed over for on-site commissioning. Because the installation media has already been applied, the on-site engineer's work typically shifts from "software installation" to "environment verification and initialization," such as confirming OS/service status, checking resource allocation, validating database and middleware health, verifying network planning (IP, gateway, DNS/NTP as required), and completing application-level initialization (site creation, user/role configuration, northbound interface settings, and device/model import if needed). In this case, downloading the full installation package is not a mandatory step for commissioning, because the package is mainly required when performing a fresh installation or reinstall/upgrade. However, standard practice is still to prepare supporting materials (patches, licenses, and compatibility documents) and ensure the preinstalled version matches the project baseline before acceptance.
NEW QUESTION # 25
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