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| Section | Weight | Objectives |
|---|---|---|
| Data Center Network Security and O&M | 10% | - Traffic Audit and Monitoring - Network Security Policies - Network Troubleshooting Methods - iMaster NCE-FabricInsight Analytics |
| CloudFabric Data Center Network Solution Overview | 10% | - Data Center Network Challenges and Trends - Huawei CloudFabric Solution Architecture - CloudFabric Solution Components and Functions |
| CloudEngine Switch Configuration | 20% | - CloudEngine OS Overview - VXLAN Configuration on CloudEngine - BGP EVPN Configuration - QinQ and VLAN Extension Technologies |
| Underlying Transport Network Technologies | 15% | - Spine-Leaf Architecture - Underlay Network Planning and Design - Overlay Network Technologies (VXLAN, NVGRE) |
| VXLAN and EVPN Technologies | 20% | - VXLAN Principles and Deployment - EVPN Route Types and Applications - BGP EVPN Fundamentals - Multi-Site VXLAN EVPN Deployment |
| Data Center Interconnect | 10% | - Cross-Domain VXLAN Extension - EVPN Multi-Site Solution - DCI Technology Overview |
| iMaster NCE-Fabric Management | 15% | - Underlay Network Automation Deployment - Overlay Network Configuration - Network Simulation and Verification - Fabric Management Concepts |
伴隨著 Huawei 認證，越來越多的客戶注意到 Huawei 的重要性，目前是經濟衰退的時期，找一份工作不容易，考取 Huawei 認證的證書當然是有用的，能夠幫助你穩定你的位置，增加求職的法碼。如果你正在準備 H12-893_V1.0 考試題目和答案的電子圖書的形式或自我測試軟體，以獲得適當的知識和技能，急需通過 H12-893_V1.0 考試，可以憑藉 Fast2test 考題網最新的題庫順利通過該考試。
問題 #77
The underlay routing protocol has already converged, but one VTEP cannot establish EVPN sessions with another. Which prerequisite should be verified first?
答案：D
解題說明：
Even with complete IP connectivity, EVPN requires operational MP-BGP neighbor relationships.
Without successful BGP session establishment, overlay routes cannot be exchanged, preventing endpoint discovery and VXLAN communication.
問題 #78
iMaster NCE-Fabric is Huawei's DC controller. Tenants can use it to create VPCs and deploy logical networks as required. After logical NEs are deployed, the corresponding network configurations are delivered to underlying network devices. Which of the following statements is false about the delivered network configurations?
答案：C
解題說明：
iMaster NCE-Fabric automates network configuration delivery in Huawei's CloudFabric. Let's evaluate each statement:
A . Logical switches are mainly used for Layer 3 communication between hosts on a VXLAN network. These switches correspond to Layer 3 gateway configurations such as VBDIF interface and VPN instance configurations on physical devices: This is false. Logical switches in iMaster NCE-Fabric primarily handle Layer 2 communication (e.g., bridging within a VNI), corresponding to Bridge Domains (BDs) and Layer 2 VNIs. Layer 3 communication is managed by gateways, not logical switches. FALSE.
B . An end port represents an online host. It corresponds to the traffic encapsulation type (whether a VLAN tag is carried) configured on a Layer 2 sub-interface of a physical device: This is true. End ports map to host connections, with encapsulation (VLAN-tagged or untagged) configured on sub-interfaces. TRUE.
C . A logical port is equivalent to an independent physical port that is used by a host to connect to a VXLAN network. It corresponds to the Layer 2 sub-interface configuration on a physical device: This is true. Logical ports represent host connections, mapped to Layer 2 sub-interfaces for VXLAN access. TRUE.
D . Logical switches are mainly used for Layer 2 communication between hosts on a VXLAN network. These switches correspond to BD and Layer 2 VNI configurations on physical devices: This is true. Logical switches facilitate Layer 2 connectivity, aligning with BD and VNI settings. TRUE.
Thus, A is the false statement because logical switches are for Layer 2, not Layer 3, communication.
問題 #79
Which of the following nodes connects computing resources such as virtual and physical servers to a VXLAN fabric?
答案：D
解題說明：
In Huawei's spine-leaf VXLAN fabric (e.g., CloudFabric), nodes have specific roles:
A . DCI leaf: Data Center Interconnect (DCI) leaf nodes connect different data centers, not internal computing resources. Incorrect.
B . Server leaf: Server leaf nodes connect computing resources (virtual servers via hypervisors, physical servers) to the VXLAN fabric, handling access traffic. This is the correct role for connecting servers. Correct.
C . Border leaf: Border leaf nodes connect the DCN to external networks, not internal computing resources. Incorrect.
D . Service leaf: Service leaf nodes connect to value-added services (e.g., firewalls), not directly to computing resources like servers. Incorrect.
Thus, the answer is B (Server leaf).
問題 #80
In Huawei CloudFabric Solution, iMaster NCE-Fabric uses SNMP to collect alarms and logs of physical devices and vSwitches.
答案：B
解題說明：
In Huawei's CloudFabric Solution, iMaster NCE-Fabric is the SDN controller responsible for managing physical devices and virtual switches (vSwitches). The method of data collection is critical for network monitoring.
SNMP Usage: Simple Network Management Protocol (SNMP) is a traditional method for collecting alarms and logs from network devices. However, Huawei's modern SDN controllers, including iMaster NCE-Fabric, primarily use telemetry (e.g., gRPC, NETCONF) for real-time data collection from physical devices and vSwitches. Telemetry provides higher efficiency and granularity compared to SNMP.
CloudFabric Approach: The solution leverages telemetry-based data collection, as documented in FabricInsight and iMaster NCE-Fabric guides, to gather alarms, logs, and performance metrics. SNMP may be supported as a legacy option but is not the primary method in this context.
The statement is FALSE (B) because iMaster NCE-Fabric predominantly uses telemetry, not SNMP, for collecting alarms and logs.
問題 #81
"1-3-5" troubleshooting of the CloudFabric intelligent O&M solution can detect, locate, and rectify faults from multiple dimensions. Which of the following are not dimensions supported by this function? (Select All that Apply)
答案：C
解題說明：
Huawei's CloudFabric intelligent O&M solution, leveraging iMaster NCE-Fabric and FabricInsight, uses the "1-3-5" principle (detect within 1 minute, locate within 3 minutes, rectify within 5 minutes) to handle faults. This approach analyzes faults across multiple dimensions. Let's evaluate each option:
A . Device: This is supported. The solution monitors device-level metrics (e.g., CPU, memory) to detect and locate faults. SUPPORTED.
B . Protocol: This is supported. Protocol issues (e.g., OSPF conflicts, BGP errors) are analyzed for fault detection and resolution. SUPPORTED.
C . Service: This is supported. Service-level faults (e.g., tenant connectivity, VPC issues) are tracked and addressed. SUPPORTED.
D . Application: This is not supported. The "1-3-5" troubleshooting focuses on network infrastructure (devices, protocols, services, configurations), not application-layer issues, which are outside its scope. NOT SUPPORTED.
E . Configuration: This is supported. Configuration errors (e.g., mismatched VNIs) are detected and rectified as part of the process. SUPPORTED.
Thus, D (Application) is not a dimension supported by the "1-3-5" troubleshooting function.
問題 #82
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