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

1. Which of the following network components in OpenStack interconnects with iMaster NCE-Fabric?

A) Neutron
B) Cinder
C) Keystone
D) Nova

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

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

3. Which of the following are characteristics of distributed VXLAN gateways?

A) 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.
B) A leaf node can function as both a Layer 2 VXLAN gateway and a Layer 3 VXLAN gateway, supporting flexible deployment.
C) 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.
D) 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.

4. RDMA is a direct memory access technology used on InfiniBand networks. It directly transfers data from the memory of one computer into that of another computer without involving either one ' s operating system or CPU processing. This achieves high bandwidth, low delay, and low resource utilization on the network.

A) TRUE
B) FALSE

5. In the CloudFabric Solution, firewalls can connect to service leaf nodes or border leaf nodes (combined with service leaf nodes).

A) TRUE
B) FALSE

Solutions: