H12-521_V1.0 Practice Questions

The correct answers are A, B, and C . The login-address logic is consistent with Huawei platform addressing rules. The material states that when a service is deployed in clustered form, the floating IP must be used, for example: “If the BMU is deployed in two-node cluster mode, enter the external service floating IP address of the BMU” . That directly supports the cluster half of A , and the corresponding single-node logic uses the normal external service address rather than a floating address.

The iClient also works across multiple Huawei platform products, which is why product selection during login is required in practice. In addition, the inter-platform relationship must be established before intelligent analysis services can be configured in platform mode. The material explicitly states “Before connecting two domains with each other, configure the local domain code and external domain information on platforms in both domains” . This directly supports C and also proves why D is false: the connection is not configured only on the iClient; it must be configured on the involved platforms themselves. Therefore, A, B, and C are the correct statements.

Cloud service network → The IVS1800 connects to the HUAWEI CLOUD service platform over the Internet and allows you to manage devices on the mobile app.

Network for connecting the device to the upper-level video and image management platform → The IVS1800 connects to the IVS3800 platform as an NVR.

Multi-node network → You can manage multiple IVS1800s on the iClient.

Single-node network → The IVS1800 can connect directly to a monitor, using an HDMI cable, to display live or recorded video.

The matching is based on the deployment role of each IVS1800 network type. The cloud service network is the mode used when the IVS1800 connects outward through the Internet to Huawei cloud services for remote device management, so it matches the feature about connection to the HUAWEI CLOUD service platform and mobile-app management. The network for connecting the device to the upper-level video and image management platform is the upstream integration path used when the IVS1800 works under a larger platform such as the IVS3800 , so that feature matches the statement about connecting to the IVS3800 platform as an NVR .

The multi-node network is intended for centralized management of multiple IVS1800 devices, which is why it matches the feature stating that multiple IVS1800s can be managed on the iClient . The single-node network is the standalone deployment model, so it matches the feature where the IVS1800 connects directly to a monitor through HDMI for local live or playback display. This mapping follows the standard Huawei deployment logic of standalone, clustered, upstream-integrated, and cloud-managed operation.

The correct answers are A, B, C, and D because a proper solar PV module check must cover both the module condition and the mechanical support condition . A damaged panel can reduce charging efficiency or create safety risks. Dirt, oil stains, dust, or snow on the panel surface can block sunlight and reduce power-generation performance. At the same time, the support structure must be checked for corrosion, rust, and stability , because outdoor PV assemblies are continuously exposed to weather, vibration, and environmental aging.

This conclusion is also consistent with the overall site-power design described in the training material, where Huawei’s integrated site solution includes “PV modules: two PV modules” and uses “SolarMax, and GridMax technologies to maximize energy efficiency of solar energy and mains and provide secure and reliable power supply” . Since PV modules are part of the site power system, both energy-conversion efficiency and structural reliability must be maintained. In actual maintenance practice, a clean, intact, and firmly supported PV module is necessary for stable long-term operation. Therefore, all four listed checks are valid and should be included.