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| Section | Objectives |
|---|---|
| Enterprise Network Architecture | - Network design principles
|
| Routing and Switching Technologies | - IP routing protocols
|
| WAN and VPN Technologies | - MPLS fundamentals
|
| IPv6 and Advanced IP Technologies | - IPv6 deployment
|
| Network Automation and Programmability | - SDN and automation
|
| Data Center and Virtualization Technologies | - VXLAN and overlay networks
|
| Network Security and QoS | - QoS mechanisms
|
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70. Frage
The HW appliance network administrator plans to migrate IGMPv2 in the multicast network to IGMPV3 Where does IGMPV3 improve over IGMPv2?
Antwort: A,B,C
71. Frage
Which of the following number sequences can be matched by the regular expression100.$?
Antwort: C,D
Begründung:
Comprehensive and Detailed In-Depth Explanation:
The regular expression100.$can be broken down as follows:
100:Matches the exact sequence of digits "100".
(dot): Representsany single character.
$:Indicates theend of the line.
Therefore, the pattern100.$matches anyfour-character sequencethat starts with "100" and ends withany single character.
1000 (A): Matches because it has four digits, starting with "100" and ending with "0".
1001 (B): Matches because it has four digits, starting with "100" and ending with "1".
10000 (C): Doesnot matchbecause it hasfive digits.
100 (D): Doesnot matchbecause it only hasthree digits.
72. Frage
In the gRPC-based telemetry protocol, the data model layer consists of theRPC layer,telemetry layer, andservice data layer. Drag the.proto fileto the layer where the file should be located.
Antwort:
Begründung:
A screenshot of a computer AI-generated content may be incorrect.
Comprehensive and Detailed In-Depth Explanation:
ThegRPC-based telemetry protocolutilizesprotocol buffers (.proto files)to define the structure and data format used in communication between a client and a server. In Huawei ' s telemetry architecture, these files are categorized based on their roles in the data model.
1. RPC Layer:
File:huawei-grpc-dialin.proto
TheRPC layer (Remote Procedure Call layer)handles communication between the client and server.
The filehuawei-grpc-dialin.protodefines thegRPC service interfaces, message structures, and procedures for remote method invocation.
It is essential forestablishing communicationandinvoking telemetry data collection.
Function:Managesdial-in and dial-out connectionsbetween the telemetry client and the server.
2. Telemetry Layer:
File:huawei-telemetry.proto
Thetelemetry layeris responsible forcollecting, packaging, and exporting telemetry data.
The filehuawei-telemetry.protocontains thedata modelused for telemetry reporting, includingstreaming data formatsandtelemetry messages.
It defines how thecollected datais organized and transmitted.
Function:Provides astructured way to export telemetry datain real-time or batch mode.
3. Service Data Layer:
File:huawei-debug.proto
Theservice data layercontains data models related todiagnostics, debugging, and operational data.
The filehuawei-debug.protois used tocollect debugging informationfrom network devices.
This file is crucial fortroubleshooting and monitoring the healthof the system.
Function:Facilitatesdebugging and diagnostic telemetry data collection.
Why This Mapping Is Correct:
The mapping is based on thefunctional role of each layerand thepurpose of each .proto filein the Huawei gRPC-based telemetry architecture.
Correctly identifying the file location is crucial foreffective telemetry configurationanddata collection.
References:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: Telemetry Configuration Guide
gRPC Protocol Buffers and Service Definition
HCIE-Datacom Knowledge Base: Telemetry and Data Collection
73. Frage
On a CloudCampus virtualized campus network, service data enters different VNs from physical networks through edge nodes, and the VN that the data will enter is determined by the VLANs to which users belong. Which of the following statements about dynamic VLAN authorization is incorrect?
Antwort: D
Begründung:
Dynamic VLAN Authorization in Huawei CloudCampus
Dynamic VLAN assignment allows users to be placed into specific VLANs based on authentication methods, ensuring security and network segmentation.
Correct Explanations:
✅ A. Wired users using 802.1X authentication receive VLAN assignments dynamically.
After authentication, the access control system (e.g., iMaster NCE-Campus) assigns VLANs dynamically.
✅ C. Wireless users using 802.1X authentication also receive VLAN assignments.
Similar to wired users, wireless 802.1X authentication allows dynamic VLAN assignment via the RADIUS server.
✅ D. Wired users using MAC authentication can receive VLAN assignments.
If a user does not support 802.1X, MAC authentication can still be used to assign VLANs dynamically.
Incorrect Statement
❌ B. When wireless users pass Portal authentication, they join the authorization VLANs delivered to edge nodes.
Wrong! In Portal authentication, VLAN assignment is not dynamically delivered because Portal authentication typically applies access policies, not VLAN changes.
Dynamic VLAN assignment is mainly used with 802.1X or MAC authentication.
Reference from Huawei HCIE-Datacom Documentation:
Huawei CloudCampus Configuration Guide - Dynamic VLAN Assignment and Authentication HCIE-Datacom Training Material - VLAN Authorization in Virtualized Campus Networks
74. Frage
In a VXLAN network, traffic is connected to the VXLAN network, and it can also be used to communicate with the same subnet within the same XLAN network
Antwort: D
75. Frage
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