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| Section | Weight | Objectives |
|---|---|---|
| Data Center Network Security and O&M | 10% | - Network Security Policies - Network Troubleshooting Methods - Traffic Audit and Monitoring - iMaster NCE-FabricInsight Analytics |
| VXLAN and EVPN Technologies | 20% | - EVPN Route Types and Applications - Multi-Site VXLAN EVPN Deployment - VXLAN Principles and Deployment - BGP EVPN Fundamentals |
| CloudEngine Switch Configuration | 20% | - BGP EVPN Configuration - VXLAN Configuration on CloudEngine - CloudEngine OS Overview - QinQ and VLAN Extension Technologies |
| Data Center Interconnect | 10% | - Cross-Domain VXLAN Extension - EVPN Multi-Site Solution - DCI Technology Overview |
| Underlying Transport Network Technologies | 15% | - Underlay Network Planning and Design - Overlay Network Technologies (VXLAN, NVGRE) - Spine-Leaf Architecture |
| CloudFabric Data Center Network Solution Overview | 10% | - Huawei CloudFabric Solution Architecture - CloudFabric Solution Components and Functions - Data Center Network Challenges and Trends |
| iMaster NCE-Fabric Management | 15% | - Network Simulation and Verification - Fabric Management Concepts - Underlay Network Automation Deployment - Overlay Network Configuration |
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問題 #45
Which of the following statements are true about the Easy mode? (Select All that Apply)
答案:A,B,D
解題說明:
The Easy mode in Huawei's iMaster NCE-Fabric simplifies network deployment for basic VXLAN fabrics. Let's evaluate each statement:
A . This mode has low networking requirements: This is true. Easy mode is designed for simple topologies (e.g., small spine-leaf networks) with minimal configuration complexity. TRUE.
B . iMaster NCE-Fabric automatically generates configuration script files: This is true. Easy mode automates script generation based on user inputs, reducing manual effort. TRUE.
C . On iMaster NCE-Fabric, you need to manually create and configure fabric resource pools, managed devices, device groups, device roles, tenants, and VPCs one by one in the Configuration Wizard menu: This is false. Easy mode automates these tasks, minimizing manual configuration compared to advanced modes. FALSE.
D . Layer 2 and Layer 3 basic services in a VPC are orchestrated on the Easy page: This is true. Easy mode supports automated orchestration of L2 (e.g., BDs) and L3 (e.g., gateways) services within a VPC. TRUE.
Thus, A, B, and D are true statements about Easy mode.
問題 #46
V-STP prevents loops caused by incorrect configurations or connections in an M-LAG.
答案:B
解題說明:
V-STP (Virtual Spanning Tree Protocol) is a Huawei-specific enhancement of the Spanning Tree Protocol (STP) designed to prevent Layer 2 loops in complex network topologies, including Multi-Chassis Link Aggregation (M-LAG) deployments on Huawei CloudEngine (CE) series switches.
M-LAG Overview: M-LAG allows two switches to appear as a single logical device, connecting to downstream devices via Link Aggregation Groups (LAGs). Without proper loop prevention, incorrect configurations (e.g., misconfigured ports) or physical connections (e.g., redundant links) can cause broadcast storms.
V-STP Role: V-STP extends STP to handle virtualized environments and M-LAG scenarios. It ensures that only one path is active in a loop-prone topology by blocking redundant links, preventing loops caused by misconfigurations or unintended connections. In M-LAG, V-STP coordinates with the peer-link to maintain a loop-free topology.
The statement is TRUE (A) because V-STP is designed to prevent loops in M-LAG deployments due to incorrect configurations or connections.
問題 #47
"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:B
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 #48
M-LAG configuration consistency check classifies device configurations into key configurations (Type 1) and common configurations (Type 2). This check can be performed in strict or loose mode based on the processing mode when key configurations are inconsistent. Which of the following statements is false about M-LAG configuration consistency check?
答案:A
解題說明:
If Type 2 configurations of the two M-LAG member devices are inconsistent, an alarm that indicates key and common configuration inconsistencies is generated. Evaluation: This statement is false. While Type 2 (common) configuration inconsistencies are detected during consistency checks, they do not typically trigger alarms, especially alarms that specifically indicate both key and common configuration inconsistencies. According to Huawei M- LAG Configuration Guide and Arista M-LAG Documentation, Type 2 inconsistencies may be logged or reported in system logs but are not severe enough to generate critical alarms unless they significantly impact network operation. Alarms are more commonly associated with Type 1 (key) configuration inconsistencies, as they pose a higher risk to M-LAG functionality.
問題 #49
Which of the following statements are true about the Easy mode? (Select All that Apply)
答案:A,B,D
解題說明:
The Easy mode in Huawei's iMaster NCE-Fabric simplifies network deployment for basic VXLAN fabrics. Let's evaluate each statement:
A). This mode has low networking requirements: This is true. Easy mode is designed for simple topologies (e.g., small spine-leaf networks) with minimal configuration complexity. TRUE.
B). iMaster NCE-Fabric automatically generates configuration script files: This is true. Easy mode automates script generation based on user inputs, reducing manual effort. TRUE.
C). On iMaster NCE-Fabric, you need to manually create and configure fabric resource pools, managed devices, device groups, device roles, tenants, and VPCs one by one in the Configuration Wizard menu: This is false. Easy mode automates these tasks, minimizing manual configuration compared to advanced modes. FALSE.
D). Layer 2 and Layer 3 basic services in a VPC are orchestrated on the Easy page: This is true.
Easy mode supports automated orchestration of L2 (e.g., BDs) and L3 (e.g., gateways) services within a VPC. TRUE.
Thus, A, B, and D are true statements about Easy mode.
問題 #50
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