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| Section | Weight | Objectives |
|---|---|---|
| iMaster NCE-Fabric Management | 15% | - Fabric Management Concepts - Overlay Network Configuration - Underlay Network Automation Deployment - Network Simulation and Verification |
| VXLAN and EVPN Technologies | 20% | - VXLAN Principles and Deployment - EVPN Route Types and Applications - BGP EVPN Fundamentals - Multi-Site VXLAN EVPN Deployment |
| Data Center Network Security and O&M | 10% | - Network Security Policies - iMaster NCE-FabricInsight Analytics - Traffic Audit and Monitoring - Network Troubleshooting Methods |
| CloudEngine Switch Configuration | 20% | - VXLAN Configuration on CloudEngine - QinQ and VLAN Extension Technologies - BGP EVPN Configuration - CloudEngine OS Overview |
| CloudFabric Data Center Network Solution Overview | 10% | - Data Center Network Challenges and Trends - CloudFabric Solution Components and Functions - Huawei CloudFabric Solution Architecture |
| Underlying Transport Network Technologies | 15% | - Underlay Network Planning and Design - Spine-Leaf Architecture - Overlay Network Technologies (VXLAN, NVGRE) |
| Data Center Interconnect | 10% | - EVPN Multi-Site Solution - Cross-Domain VXLAN Extension - DCI Technology Overview |
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질문 # 75
Fill in blank
The FusionCompute logical architecture consists of two modules: ___ and CNA. (Enter the acronym in uppercase letters.)
정답：
설명：
VRM
Explanation:
FusionCompute is Huawei's virtualization platform, part of the FusionSphere ecosystem, designed for managing virtualized resources in data centers. Its logical architecture consists of two primary modules:
VRM (Virtualization Resource Management): VRM is the management module responsible for centralized control, resource allocation, and monitoring of virtual machines, hosts, and clusters. It provides the user interface and orchestration capabilities for administrators to manage the virtualized environment.
CNA (Compute Node Agent): CNA runs on physical hosts and handles the execution of virtualization tasks, such as VM creation, resource scheduling, and communication with the underlying hypervisor (typically KVM in Huawei's implementation). It acts as the compute node agent interfacing with the hardware.
Together, VRM and CNA form the core logical architecture of FusionCompute, with VRM managing the environment and CNA executing the compute tasks. The answer, per Huawei's documentation, is VRM.
질문 # 76
When deploying VXLAN, why is an IP underlay generally preferred over a large Layer 2 network?
정답：C
설명：
An IP underlay provides scalable routing, rapid convergence, and efficient ECMP forwarding.
Large Layer 2 domains are more susceptible to flooding and spanning-tree limitations, reducing overall scalability and operational efficiency.
질문 # 77
In Huawei CloudFabric Solution, OSPF or BGP can be used on the underlay network of a DC.
정답：B
설명：
In Huawei's CloudFabric Solution, the underlay network provides the physical infrastructure for VXLAN overlays. Both OSPF (Open Shortest Path First) and BGP (Border Gateway Protocol) are supported routing protocols:
OSPF: Suitable for smaller to medium-sized DCNs, offering fast convergence and simplicity.
BGP: Preferred for large-scale DCNs, providing scalability and multi-tenancy support (e.g., EBGP for inter-AS or iBGP for intra-DC).
Huawei documentation confirms flexibility in choosing OSPF or BGP based on network size and requirements. The statement is TRUE (A).
질문 # 78
In which of the following phases can CloudFabric implement full-lifecycle automatic network management and control? (Select All that Apply)
정답：A,B,C,D
설명：
Huawei's CloudFabric solution provides an SDN-based framework for data center network management, supporting automation across the network lifecycle. Let's evaluate each phase:
A). Planning and construction: This is true. CloudFabric automates network design, resource allocation, and deployment during the planning and construction phase using tools like iMaster NCE. TRUE.
B). Service provisioning: This is true. Automated service orchestration (e.g., VXLAN tunnel setup, tenant configuration) is a key feature during provisioning. TRUE.
C). O&M and monitoring: This is true. CloudFabric offers real-time monitoring, fault detection, and performance optimization through centralized management. TRUE.
D). Change optimization: This is true. The solution supports automated upgrades, policy adjustments, and optimization based on analytics, covering the change management phase.
TRUE.
All phases A, B, C, and D are supported by CloudFabric's full-lifecycle automation.
질문 # 79
Which of the following statements is false about the routing design for the underlay network during DCN deployment?
정답：B
설명：
The underlay network in Huawei's DCNs (e.g., CloudFabric) uses routing protocols like OSPF or BGP. Let's evaluate each statement:
A). OSPF is recommended for small and midsize DCNs, and EBGP is recommended for large and midsize networks: This is true. OSPF suits smaller networks (<300 switches), while EBGP is better for large networks (>300 switches) due to scalability. TRUE.
B). When OSPF is used on the underlay network, only single-area OSPF can be deployed: This is false. Multi-area OSPF can be deployed to manage larger networks, reducing routing table size and improving stability, a common practice in Huawei DCNs. FALSE.
C). Compared with OSPF, EBGP involves fewer calculations and offers better scalability: This is true. EBGP's path-vector nature requires fewer computational resources than OSPF's link-state calculations and scales better with large topologies. TRUE.
D). When EBGP is used on the underlay network, each group of active-active leaf nodes is deployed in an AS: This is true. In EBGP designs, active-active leaf nodes (e.g., M-LAG) are typically in the same Autonomous System (AS) to simplify routing, using iBGP or route reflectors.
TRUE.
Thus, B is the false statement because multi-area OSPF is supported, not just single-area.
질문 # 80
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