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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network O&M | 7% | - Network monitoring and management tools - Performance optimization and capacity planning |
| Topic 2: Advanced Ethernet Technologies | 10% | - Ethernet OAM and protection mechanisms - Advanced link aggregation and reliability - VLAN stacking and QinQ |
| Topic 3: IPv6 Routing | 20% | - OSPFv3 and IS-IS for IPv6 - IPv6 addressing and transition technologies - BGP4+ and IPv6 route deployment |
| Topic 4: MPLS Technologies | 19% | - MPLS basics and label distribution - MPLS VPN and traffic engineering - MPLS protection and fast reroute |
| Topic 5: Network Troubleshooting | 10% | - Fault diagnosis and analysis methods - Troubleshooting routing and switching issues |
| Topic 6: Network Cutover and Migration | 7% | - Migration strategies and risk control - Service switchover and verification |
| Topic 7: Advanced IGP Features | 17% | - IS-IS advanced features and convergence - OSPF advanced features and optimization - IGP route selection and control |
| Topic 8: Advanced BGP Features | 10% | - BGP route attributes and policies - Route reflectors and confederations - BGP path control and filtering |
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NEW QUESTION # 218
On the network shown in the figure, EBGP peer relationships are established between neighboring routers through directly connected interfaces.
* The router ID of each router is 10.0.X.X, and the AS number is 6500X, where X is the number of the router.
* Both R1 and R4 have static routes to 192.168.1.0/24, which are imported to BGP through the import- route command.
Which of the following statements are true?
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the BGP Network Topology in the Question:
* EBGP Peering
* Each router forms EBGP peer relationships with directly connected neighbors.
* This is a fully meshed topology, meaning each router exchanges BGP routes with its adjacent routers.
* Routing Information for 192.168.1.0/24
* R1 and R4 import the static route 192.168.1.0/24 into BGP.
* Since BGP prefers the shortest AS path, traffic to 192.168.1.0/24 will follow the shortest path to R1 or R4.
Route Analysis for Each Statement:
Statement A: R6 # R5 # R4 # (Correct)
* R6 does not have a direct route to 192.168.1.0/24, so it must rely on BGP advertisements from its EBGP neighbors.
* R5 learns the route to 192.168.1.0/24 from R4.
* Therefore, R6 forwards traffic to R5, and then R5 sends it to R4.
# Correct path: R6 # R5 # R4
Statement B: R5 # R4 # (Correct)
* R5 is directly connected to R4, and since R4 advertises the 192.168.1.0/24 route via BGP,
* R5 will forward traffic directly to R4 as the shortest AS path.
# Correct path: R5 # R4
Statement C: R2 # R1 # (Correct)
* R2 is directly connected to R1 and learns the 192.168.1.0/24 route from R1 via BGP.
* Since R1 advertises the static route, R2 forwards traffic directly to R1.
# Correct path: R2 # R1
Statement D: R3 # R2 # R1 # (Correct)
* R3 is directly connected to R2 and learns the 192.168.1.0/24 route from R2 via BGP.
* Since R2 prefers R1 as the shortest AS path to 192.168.1.0/24,
* R3 will send traffic to R2, and R2 will send it to R1.
# Correct path: R3 # R2 # R1
Final Conclusion:
# A. The path for traffic from R6 to 192.168.1.0/24 is R6 # R5 # R4.
# B. The path for traffic from R5 to 192.168.1.0/24 is R5 # R4.
# C. The path for traffic from R2 to 192.168.1.0/24 is R2 # R1.
# D. The path for traffic from R3 to 192.168.1.0/24 is R3 # R2 # R1.
Thus, the correct answers are: A, B, C, D.
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - BGP Best Path Selection and AS Path Preferences Huawei Official HCIP-Datacom Study Guide - EBGP Route Advertisement and Static Route Import into BGP Huawei Documentation on BGP Route Selection and Path Preference Mechanisms
NEW QUESTION # 219
Fill in Blanks
In OSPFv3, an LSA whose propagation range is one area has_____kind. (Fill in Arabic numerals only)
Answer:
Explanation:
9
NEW QUESTION # 220
MPLS is called Multi-Protocol Label Switching. Regarding the label description in MPLS, the correct one is:
Answer: A,B,D
NEW QUESTION # 221
As shown in the figure, configure a backhaul summary route 10.0.0.0/24 on the border route RT1. next hop to RT2. At the same time, the default route to the external network is configured. At this point, a routing black hole will appear. The following is about routing Is the black hole statement correct? (multiple choice)
Answer: A,B,D
NEW QUESTION # 222
On the OSPFv3 network shown in the figure, OSPFv3 parameters use default values. The LSDB is checked on one of the devices. The router IDs of R1, R3, and R4 are 10.0.1.1, 10.0.3.3, and 10.0.4.4 respectively. The Origin Router part of some LSAs is hidden. Complete this part. (Tokens can be reused.) Match the Origin Router ID to the correct LSA entry below:
Answer:
Explanation:
Explanation:
* Link-LSA (ID 0.0.0.4) : This LSA is originated by each router to describe its link-local IPv6 address and prefixes. The value 0.0.0.4 maps to the interface on R1 , which has Router ID 10.0.1.1 . # So the origin router is 10.0.1.1 .
* Network-LSA (ID 0.0.0.5) : This LSA is generated by the DR on the link. In the diagram, R4 (10.0.4.4) is connected to the shared network (GE0/0/1). # So the origin router is 10.0.4.4 .
* Inter-Area-Prefix-LSA (ID 0.0.0.1) : This LSA is used to describe routes from other areas and is generated by an ABR . In this case, R3 (Router ID 10.0.3.3) acts as the ABR. # So the origin router is
10.0.3.3 .
* Intra-Area-Prefix-LSA (ID 0.0.0.2) : This references a Network-LSA , and the reference type is 1 (Network-LSA). Since the Network-LSA (0.0.0.5) came from 10.0.4.4 , this also must have been generated by R4 . # So the origin router is 10.0.4.4 .
# Final Answer Summary:
Number
Origin Router
1
10.0.1.1
2
10.0.4.4
3
10.0.3.3
4
10.0.4.4
Official Huawei Extract:
" Each router in OSPFv3 generates Link-LSAs for each interface. The DR generates Network-LSAs.
ABRs generate Inter-Area LSAs, and the Intra-Area-Prefix LSA references either Router or Network LSAs depending on the link type. "
- [Huawei HCIA-Datacom OSPFv3 LSAs Section]
NEW QUESTION # 223
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