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Huawei H19-402_V1.0 Exam Syllabus Topics:

SectionObjectives
Data Center Switching and Routing Technologies- VXLAN and overlay networking
- OSPF and BGP in data center environments
- Layer 2/Layer 3 forwarding mechanisms
Data Center Virtualization and SDN- Network virtualization and tenant isolation
- Huawei CloudFabric concepts
- SDN architecture and controller-based networking
Deployment and Operations- Troubleshooting methodologies
- Data center network deployment planning
- Monitoring and O&M practices
Data Center Network Architecture Principles- Scalability and capacity planning
- High availability and redundancy design
- Data center network topology design (Spine-Leaf)
Data Center Security and Reliability Design- Security zoning and segmentation
- DDoS mitigation and access control
- Fault detection and recovery mechanisms

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Huawei HCSP-Presales-Data Center Network Planning and Design V1.0 Sample Questions (Q52-Q57):

NEW QUESTION # 52
The NetEco6000 management system uses the above security mechanisms to ensure network security and prevent the leakage of sensitive business data? (Multiple choice)

Answer: A,C,D


NEW QUESTION # 53
FusionModule800 can only support downlink routing

Answer: A


NEW QUESTION # 54
(Border leaf nodes are deployed in an M-LAG active-active device group and form square looped networking with PEs. Dual-egress connections provide link-level and device-level protection. In this scenario, no bypass link needs to be deployed between the border leaf nodes.)

Answer: B

Explanation:
In Huawei CloudFabric design, M-LAG (Multi-Chassis Link Aggregation) is widely used to provide active- active forwarding and high availability at the access and border layers. When border leaf nodes are deployed in an M-LAG pair, they typically connect to upstream PE (Provider Edge) devices in a dual-homing (square topology) manner, ensuring both link-level and device-level redundancy.
However, Huawei design guidelines clearly state that an interconnection link (commonly called a peer-link or bypass link) between M-LAG devices is mandatory. This link is essential for synchronization of forwarding states, MAC address tables, ARP/ND entries, and control plane information between the two devices. It also ensures proper traffic forwarding in failure scenarios, such as when one device loses its uplinks but remains operational.
Without this peer-link, traffic consistency and loop prevention mechanisms cannot function correctly, leading to potential traffic loss or loops. Therefore, even in dual-egress scenarios with PE devices, the bypass/peer link is still required.
Hence, the statement is FALSE.


NEW QUESTION # 55
UPS2000-G adopts high power density design. 6k/10k is only 2U high, and 15K/20K is only 3U high, which reduces the installation space.

Answer: B


NEW QUESTION # 56
iMaster NCE-Fabric can manage Huawei CloudEngine switches in either in-band or out-of-band mode. In in- band mode, iMaster NCE-Fabric uses northbound interfaces to manage switches through the service network.
In out-of-band mode, southbound interfaces of iMaster NCE-Fabric are connected to the management interfaces of switches through an independent management network.

Answer: B

Explanation:
The statement is false due to an incorrect description of in-band management communication .
Huawei iMaster NCE-Fabric indeed supports both in-band and out-of-band deployment modes , but the interfaces used are misrepresented:
In in-band mode , iMaster NCE-Fabric uses southbound interfaces (not northbound) to communicate with switches over the service network . These southbound interfaces are responsible for delivering configurations and collecting device information.
In out-of-band mode , the description is correct: the controller connects to device management interfaces via a dedicated management network , ensuring separation from service traffic.
The confusion arises because:
Northbound interfaces are used for communication between the controller and upper-layer systems (e.g., cloud platforms like OpenStack or ManageOne).
Southbound interfaces are used for communication between the controller and network devices .
Huawei architecture strictly separates these roles to enable clear control-plane layering and automation .
Therefore, because the statement incorrectly mentions northbound interfaces in in-band mode , the correct answer is FALSE .


NEW QUESTION # 57
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