H19-402_V1.0 Exam Dumps : HCSP-Presales – Data Center Network Planning and Design V1.0

In Huawei CloudFabric architecture, the underlay network is defined as a pure IP transport (bearer) network whose primary role is to provide Layer 3 reachability between VTEPs (VXLAN Tunnel Endpoints) . It is designed to be simple, stable, and highly reliable , typically composed of spine and leaf switches running routing protocols such as OSPF, IS-IS, or EBGP .

The statement is false because it incorrectly includes LBs (load balancers) and firewalls as part of the underlay network. In Huawei design principles:

Underlay = physical IP forwarding infrastructure (switch fabric only)

Overlay/services = VAS devices (firewalls, load balancers, etc.)

Firewalls and load balancers are considered service devices (VAS) and are usually connected via service leaf nodes or border leaf nodes , operating in the overlay/service layer , not as part of the underlay forwarding plane.

Additionally, the underlay is typically implemented using a spine-leaf architecture , not traditional three-tier (core/aggregation/access) designs.

Therefore, the statement is FALSE .

In Huawei’s intelligent O & M architecture, NETCONF is a modern network management protocol designed for transactional, reliable, and concurrent-safe configuration management . One of its key features is the lock mechanism , which allows a user or system to lock a configuration datastore (such as candidate or running configuration) to prevent other users or processes from making conflicting changes simultaneously. This ensures consistency, atomic operations, and rollback capability , which are critical in automated data center environments like CloudFabric.

On the other hand, SNMP (Simple Network Management Protocol) is primarily designed for monitoring and basic configuration , but it lacks advanced transaction control features. SNMP does not support configuration locking or transactional commits, meaning multiple users can overwrite each other’s changes, potentially leading to configuration inconsistencies.

Huawei strongly recommends using NETCONF/YANG-based automation (e.g., via iMaster NCE-Fabric) for modern data center operations because it provides structured data modeling, conflict prevention, and programmability , which SNMP cannot offer.

Therefore, the statement is TRUE .

In Huawei Cloud Stack (HCS) architecture, ManageOne serves as the unified cloud management platform , responsible for end-to-end orchestration, service provisioning, and lifecycle management across compute, storage, and network resources. It provides a centralized portal for administrators and tenants, enabling automated deployment and O & M of cloud services.

FusionSphere is Huawei’s virtualization platform (similar to OpenStack + hypervisor integration) and operates at the resource layer, not as the top-level management system. Hypervisor and Virtual Machine Monitor (VMM) are components of the virtualization layer that manage virtual machines on physical servers, but they lack cloud-wide orchestration capabilities.

From a Huawei CloudFabric perspective, ManageOne integrates with controllers like iMaster NCE-Fabric to automate network provisioning, enabling seamless underlay and overlay configuration. It supports multi-data-center management, self-service portals, and policy-driven automation, which are essential for modern cloud data center operations.

Therefore, ManageOne is the correct answer as the cloud management platform in HCS.