H19-402_V1.0 Exam Materials | Test H19-402_V1.0 Book

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Huawei H19-402_V1.0 Exam Syllabus Topics:

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

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Huawei HCSP-Presales-Data Center Network Planning and Design V1.0 Sample Questions (Q57-Q62):

NEW QUESTION # 57
RoCEv2 is implemented based on TCP.

Answer: A

Explanation:
RoCEv2 (RDMA over Converged Ethernet version 2) is not based on TCP ; instead, it is implemented over UDP/IP . Therefore, the statement is false.
RoCEv2 encapsulates RDMA traffic directly into UDP packets over IP networks , enabling it to operate across Layer 3 networks, unlike RoCEv1 which is limited to Layer 2. This design allows RoCEv2 to leverage existing IP routing infrastructure in modern data centers.
However, because RoCEv2 does not use TCP, it does not inherently provide congestion control or retransmission mechanisms like TCP does. As a result, Huawei emphasizes the need for a lossless network fabric to support RoCEv2 traffic. Technologies such as:
PFC (Priority Flow Control)
ECN (Explicit Congestion Notification)
DCQCN (Data Center Quantized Congestion Notification)
are implemented in Huawei CloudFabric to ensure reliable and low-latency communication.
This architecture is critical for AI computing, HPC, and distributed storage , where RDMA enables high throughput and ultra-low latency.
Therefore, the correct answer is B (FALSE) .


NEW QUESTION # 58
Which of the following are FusionModule1000AV2R3 version 20-foot CT scene air conditioning features? (Multiple choice)

Answer: A,C,D


NEW QUESTION # 59
In the FusionModule2000 refrigeration system, which of the following are optional temperature control type? (Multiple choice)

Answer: A,B,C,D


NEW QUESTION # 60
Using U-position self-identification technology to ensure accurate placement of IT equipment, which feature of NetEco is this?

Answer: A


NEW QUESTION # 61
The NetEco6000 management system uses the above security mechanisms to ensure network security and prevent the leakage of sensitive business data? (Multiple choice)

Answer: B,C,D


NEW QUESTION # 62
......

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