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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:

1. Which of the following statements is false about the underlay network?

A) The underlay network consists of NVEs running VXLAN and devices that only forward IP packets.
B) The underlay network is not used for Layer 3 route reachability.
C) The underlay network has an independent forwarding plane (which usually uses IPv4) and an independent control protocol (which is usually OSPF and EBGP).
D) The underlay network is the bearer plane of the VXLAN network.

2. What are the dimensions involved in health check in the CloudFabric Solution?

A) Status
B) Capacity
C) Security policy
D) Connectivity
E) Performance
F) VM

3. Which of the following statements is false about in-band and out-of-band deployment of iMaster NCE-Fabric?

A) In out-of-band deployment mode, iMaster NCE-Fabric connects to the management interfaces of devices through the out-of-band management switch.
B) In in-band deployment mode, the management network and service network share service network ports. The southbound IP address of iMaster NCE-Fabric communicates with the management IP addresses of devices through the service network.
C) In in-band deployment mode, service network ports have redundant connections, eliminating single points of failure and providing high reliability.
D) In in-band deployment mode, the management network and service network are isolated and do not affect each other.

4. (Which of the following is not a capability of network overlay?)

A) Network overlay applies to private cloud users who have high requirements for the forwarding performance, O & M, and security.
B) Virtual and physical servers can access the network.
C) NVEs can be deployed on physical switches.
D) The controller delivers flow tables to NVEs synchronously.

5. 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.

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