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| Section | Weight | Objectives |
|---|---|---|
| Network Cutover and Migration | 7% | - Service switchover and verification - Migration strategies and risk control |
| Advanced IGP Features | 17% | - IS-IS advanced features and convergence - IGP route selection and control - OSPF advanced features and optimization |
| IPv6 Routing | 20% | - BGP4+ and IPv6 route deployment - OSPFv3 and IS-IS for IPv6 - IPv6 addressing and transition technologies |
| Advanced Ethernet Technologies | 10% | - Advanced link aggregation and reliability - Ethernet OAM and protection mechanisms - VLAN stacking and QinQ |
| MPLS Technologies | 19% | - MPLS protection and fast reroute - MPLS basics and label distribution - MPLS VPN and traffic engineering |
| Network O&M | 7% | - Network monitoring and management tools - Performance optimization and capacity planning |
| Network Troubleshooting | 10% | - Fault diagnosis and analysis methods - Troubleshooting routing and switching issues |
| Advanced BGP Features | 10% | - Route reflectors and confederations - BGP route attributes and policies - BGP path control and filtering |
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NEW QUESTION # 56
On the BGP/MPLS IP VPN network shown in the figure, an administrator wants to use the hub-spoke networking to implement centralized management and control of VPN traffic at the hub site. Meet this requirement by dragging the RTs to their corresponding positions. (Tokens can be reused.)
Answer:
Explanation:
Explanation:
In a hub-and-spoke VPN topology :
* Spoke sites should be able to communicate only with the hub , not directly with each other.
* This is achieved through RT (Route Target) control:
* Spokes export routes with ERT = 200:1
* Hub imports those routes with IRT = 200:1
* Hub exports routes with ERT = 100:1
* Spokes import those hub routes using IRT = 100:1
This results in:
* Spokes receive hub routes , but
* Spokes do not receive each other ' s routes , preventing direct spoke-to-spoke communication.
Official Huawei Extract:
" In a hub-spoke topology, spokes use one RT to export (e.g., 200:1), and the hub uses that as its import RT. The hub exports routes with a different RT (e.g., 100:1), and spokes import that RT. This enforces centralized traffic control through the hub. "
- [Huawei HCIA-Datacom Certification Guide - MPLS VPN and Route Target Control]
NEW QUESTION # 57
In the hub-spoke networking shown in the figure, the Hub-PE can be configured to allow repetitive local AS numbers for correct route transmission.
Answer: B
NEW QUESTION # 58
In the DU label distribution mode, if the Liberal retention mode is adopted, the device will retain all the labels distributed by the LDP Peer, regardless of whether the LDP Peer is the optimal next-hop to reach the target network segment.
Answer: B
NEW QUESTION # 59
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.X.X, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through the import method, and R3 and R6 introduce the external network 192.168.2.0/24 into BGP through the import method.
Which of the following descriptions are correct by default? (Multiple choice)
Answer: A,B,C,D
NEW QUESTION # 60
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, where R2 and R5 are RRs and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. R2 and R5 also establish an IBG neighbor relationship. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.XX, where X is the device number. R1 and R4 introduce the external network 192.168.0/24 into BGP through import.
For 192.168.1.0/24, match the number of valid routes in the display bgp routing-table output.
Answer:
Explanation:
NEW QUESTION # 61
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