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Huawei H19-402_V1.0 Certification Exam is a comprehensive exam that requires candidates to have a deep understanding of data center network planning and design. H19-402_V1.0 exam is designed to test the candidate's ability to analyze complex network scenarios and come up with effective solutions. H19-402_V1.0 exam is also designed to test the candidate's ability to work under pressure and meet tight deadlines. Passing this certification exam is a great way to demonstrate your expertise in data center network planning and design and enhance your career prospects.
Passing the Huawei H19-402_V1.0 Certification Exam is a great way to demonstrate your expertise in designing and planning data center networks using Huawei products and solutions. HCSP-Presales-Data Center Network Planning and Design V1.0 certification can help you stand out in a highly competitive job market and enhance your career prospects. It can also help you gain recognition and respect from your peers and clients, and increase your earning potential.
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Huawei H19-402_V1.0 (HCSP-Presales-Data Center Network Planning and Design V1.0) certification exam is a professional-level certification offered by Huawei Technologies Co. Ltd. HCSP-Presales-Data Center Network Planning and Design V1.0 certification exam is designed to test the knowledge and skills of professionals who are involved in the planning and design of data center network solutions.
NEW QUESTION # 44
(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 # 45
Which of the following technologies can be used together with VXLAN to implement active-active access?
Answer: B,C
Explanation:
In Huawei CloudFabric VXLAN-based data center networks, active-active access is a key design goal to ensure high availability, load balancing, and optimal resource utilization.
M-LAG (C) is one of the primary technologies used to achieve active-active access at the access layer. It allows a server or downstream device to connect to two leaf switches simultaneously, both of which actively forward traffic. This eliminates single points of failure and ensures link redundancy with load sharing.
EVPN (D) , when used with VXLAN, provides the control plane for MAC/IP route distribution. It enables multi-homing and supports all-active forwarding , ensuring consistent forwarding decisions across the fabric.
EVPN also prevents loops and optimizes traffic forwarding using mechanisms like aliasing and mass withdrawal.
Smart Link (A) is typically used for primary/backup (active-standby) scenarios, not active-active. BFD (B) is a fast fault detection protocol and does not provide active-active forwarding capability.
Huawei best practices recommend combining VXLAN + EVPN + M-LAG to achieve highly reliable, scalable, and active-active data center access architectures .
Therefore, the correct answers are C and D .
NEW QUESTION # 46
(During data center network design, if the number of TOR switches is less than 100, which of the following protocols is recommended for underlay routing?)
Answer: B
Explanation:
According to Huawei data center network design guidelines, the selection of an underlay routing protocol depends on the scale and complexity of the network. For small to medium-sized data centers , particularly when the number of ToR (Top of Rack) switches is less than 100 , OSPF (Open Shortest Path First) is the recommended routing protocol.
OSPF is a mature and widely deployed link-state protocol that offers fast convergence, simple configuration, and strong interoperability. It is well-suited for smaller-scale spine-leaf networks where operational simplicity is a priority. Huawei recommends OSPF in such scenarios because it provides sufficient scalability and performance without the added complexity of protocols like BGP.
For larger-scale data centers (typically more than 100 ToR switches), Huawei suggests using IS-IS or BGP to improve scalability and simplify large-scale route management. RIP is not suitable due to its limitations in scalability and convergence speed.
Therefore, for networks with fewer than 100 ToR switches, OSPF is the optimal and recommended choice .
NEW QUESTION # 47
The load is 120kW. UPS5000-S is used to meet the N+2 modular redundant configuration. The configurable model is () kVA.
Answer: C
NEW QUESTION # 48
Which of the following statements about battery intelligent management in UPS5000-A is correct?
(Multiple choice)
Answer: A,B,C,D
NEW QUESTION # 49
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