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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Cutover and Migration | 7% | - Service switchover and verification - Migration strategies and risk control |
| Topic 2: MPLS Technologies | 19% | - MPLS protection and fast reroute - MPLS VPN and traffic engineering - MPLS basics and label distribution |
| Topic 3: Advanced BGP Features | 10% | - BGP route attributes and policies - BGP path control and filtering - Route reflectors and confederations |
| Topic 4: Advanced Ethernet Technologies | 10% | - VLAN stacking and QinQ - Advanced link aggregation and reliability - Ethernet OAM and protection mechanisms |
| Topic 5: Network O&M | 7% | - Performance optimization and capacity planning - Network monitoring and management tools |
| Topic 6: Network Troubleshooting | 10% | - Troubleshooting routing and switching issues - Fault diagnosis and analysis methods |
| Topic 7: IPv6 Routing | 20% | - OSPFv3 and IS-IS for IPv6 - BGP4+ and IPv6 route deployment - IPv6 addressing and transition technologies |
| Topic 8: Advanced IGP Features | 17% | - IGP route selection and control - IS-IS advanced features and convergence - OSPF advanced features and optimization |
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NEW QUESTION # 184
As shown in the figure, the message is forwarded based on MPLS in the network. When PE2 receives the message sent by P2, which of the following is the label value carried in the message?
Answer: A
NEW QUESTION # 185
An RR and its clients form a cluster, which is identified by a unique cluster ID in an AS. When a route is reflected by an RR for the first time, the RR adds the local cluster ID to the top of the Cluster_List attribute if the Cluster_List attribute value is empty. If the Cluster_List attribute has a value, the RR does not modify the value.
Answer: A
Explanation:
This statement is false . In Huawei ' s implementation of BGP Route Reflectors:
* Each RR (Route Reflector) and its clients form a cluster identified by a cluster ID .
* When an RR reflects a route:
* If the Cluster_List is empty , it adds the local cluster ID.
* If the Cluster_List already contains values , it adds the local cluster ID to the beginning of the list.
So the RR does modify the Cluster_List by adding its own cluster ID regardless of whether the list is empty or not.
# Official Reference from Huawei:
" When an RR reflects a route, it adds its own Cluster_ID to the Cluster_List attribute regardless of whether the Cluster_List is empty or not. This mechanism prevents routing loops. "
- [Huawei HCIA-Datacom Certification Guide - BGP Route Reflector Section]
NEW QUESTION # 186
Which of the following is not a new addition to IS-IS to support the processing and calculation of IPv6 routes?
Answer: B
NEW QUESTION # 187
The deployment of port isolation technology in Ethernet can realize Layer 2 intercommunication and Layer 3 isolation, making the network more flexible.
Answer: A
NEW QUESTION # 188
An engineer uses two routers to test IPv6 services, and simulates the headquarters and branches by running BGP4+ of interconnection. As shown in the figure, an engineer captures packets to view the update packets sent by R1. About this message Description of information, which of the following statements is correct
Answer: B
NEW QUESTION # 189
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