Huawei H12-521_V1.0 Exam With Confidence Using Practice Dumps

The correct answer is B because switching the secondary stream type is a stream configuration task, not an image-adjustment operation in the PTZ dome camera web interface. During image adjustment, the operator typically works with live-view and framing tools, such as directional control, local inspection, and capture assistance. That is why operations such as using a virtual joystick to move the PTZ direction, taking snapshots , and performing ePTZ for local image inspection fit naturally into image adjustment behavior.

The broader training content confirms that PTZ control belongs to live-view operation, stating that users can “perform PTZ controls … for example, control the PTZ direction, set PTZ preset positions, and set the home position” . That supports directional adjustment as a valid operation. A snapshot is also a live-view support function, while ePTZ is commonly used for image observation and local enlargement. However, secondary stream type belongs to video stream configuration, such as choosing or modifying stream properties, and is not part of direct image-adjustment handling. Therefore, the option that cannot be performed in image adjustment is B .

The correct answers are A, C, and D . In IVS3800 architecture, the distinction between management nodes and service nodes is based on whether the node carries the platform’s management container set, especially the CSPOM role. A management node is the server that contains the management component, while a service node is the server that does not contain that management component and instead focuses on service workloads. This is why C and D are correct from the node-role definition perspective.

The cluster nature of the management role is also consistent with the platform design. The training material repeatedly refers to BMU and management addressing in two-node cluster mode , for example: “If the BMU is deployed in two-node cluster mode, enter the external service floating IP address of the BMU” and similarly references external management floating IP handling for clustered upper-level nodes . This reflects that the management layer is designed around clustered high-availability deployment, supporting A . By contrast, B is not accepted because an IVS3800 system made up of only management nodes would lack the service-bearing nodes needed to deliver actual intelligent vision workloads. Therefore, A, C, and D are the correct statements.

The correct answers are A, C, and D because the documents prepared before IVS low-level design are the input materials used for design, deployment generation, and parameter definition, while the LLD report is an output of the LLD activity itself. The material emphasizes that network planning must be completed in advance, and the deployment process requires predefined addressing and parameter information. This is consistent with statements such as determining the network segment and IP address range for each network plane before deployment, and with the repeated use of fixed external service and management IP planning in domain and cluster configuration workflows .

From an engineering workflow perspective, the network plan file is required because network segments, IP ranges, and live-network planning must be decided in advance. A project configuration file is also needed because it carries deployment-specific parameters for the project. A JSON file is typically used as a structured import or export artifact generated by design tools and then consumed during planning or deployment preparation. However, the LLD report is not a prerequisite input document; it is the design deliverable produced after engineers complete the LLD work. Therefore, the required pre-LLD preparation documents are A, C, and D .