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Huawei H19-402_V1.0 Exam Syllabus Topics:

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

Question 1

Which of the following are characteristics of distributed VXLAN gateways?

A. A leaf node can function as both a Layer 2 VXLAN gateway and a Layer 3 VXLAN gateway, supporting flexible deployment.
B. The number of ARP entries supported is a bottleneck. A single Layer 3 gateway is used. For tenants whose traffic is forwarded by the Layer 3 gateway, ARP entries must be generated for the tenants on the Layer 3 gateway, but only a limited number of ARP entries are allowed by the Layer 3 gateway, which impedes data center network expansion.
C. Forwarding paths are not optimal. Inter-subnet Layer 3 traffic between devices connected to the same gateway in a data center must be transmitted to a unified Layer 3 gateway for forwarding.
D. A distributed VXLAN gateway (leaf node) only needs to learn the ARP entries of servers connected to it, whereas a centralized Layer 3 VXLAN gateway needs to learn the ARP entries of all servers on a network. Therefore, the number of ARP entries supported is no longer a bottleneck on distributed VXLAN gateways, and the network scalability is improved.

Question 2

Which of the following technologies can be used for L4-L7 load balancing in Huawei ' s CloudFabric Solution?

A. IP ECMP
B. Nginx
C. HAProxy
D. LVS

Question 3

How long does it take to perform a switchover in M-LAG 2.0 upon a single point of failure?

A. 1 s
B. 20 ms
C. 100 ms
D. 5 ms

Question 4

(Which of the following statements is false about the access design of server leaf nodes?)

A. The M-LAG, stacking, and standalone modes are often used for server access. Stacking is recommended because it can ensure service continuity during the upgrade of access switches.
B. Select the model of server leaf nodes based on the server access bandwidth (10GE/25GE access) and the ratio of server leaf nodes ' uplink bandwidth to spine nodes ' downlink bandwidth.
C. Determine the number of server leaf nodes based on the number of servers.
D. Select the model of server leaf nodes depending on whether microsegmentation or IPv6 deployment or evolution towards them is required.

Question 5

Which of the following technologies can be used together with VXLAN to implement active-active access?

A. BFD
B. M-LAG
C. EVPN
D. Smart Link

Solutions: