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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0 |
| Available Languages: | English, Chinese |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD 200 (varies by region) |
| Passing Score: | 600/1000 |
| Real Exam Qty: | 60 |
| Exam Format: | True/False, Multiple choice, Single choice |
| Related Certifications: | HCIA-Datacom HCIP-Datacom-Core Technology HCIE-Datacom |
| Recommended Training: | Huawei Talent Online Learning |
| Exam Registration: | Huawei Certification Official Portal |
| Sample Questions: | Huawei H12-831_V1.0 Sample Questions |
| Exam Way: | Online proctored or authorized testing center (onsite) |
| Pre Condition: | Recommended to hold HCIA-Datacom certification or equivalent networking knowledge. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert |
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Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Certification Exam is an important certification for professionals who are interested in pursuing a career in data communication and networking. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification validates the skills and knowledge of professionals in advanced routing and switching technologies. H12-831_V1.0 exam is comprehensive and requires extensive preparation. It is an important step towards achieving higher-level certifications and is highly valued by employers globally.
Huawei H12-831_V1.0 Exam is designed to test the candidate's knowledge of advanced routing and switching technologies in areas such as network design, implementation, management, and troubleshooting. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification validates the candidate's ability to design, configure, and troubleshoot complex network infrastructures using Huawei's advanced routing and switching technologies.
NEW QUESTION # 198
When there are multiple redundant links in the IS-S network, multiple equal-cost routes may appear.
Regarding equal-cost routes in an IS-IS network, which of the following descriptions is wrong?
Answer: C
NEW QUESTION # 199
Please sort by the cutover execution steps.
Answer: A,B,C,D,E
NEW QUESTION # 200
On the IS-IS IPv6 network shown in the figure, multi-topology is enabled on all routers. The IPv6 address of Loopback0 on R4 is 2000::/128. The IPv6 summary 2000::/64 level-1-2 command is configured in the IS-IS processes of R2 and R1. Which of the following statements is false?
Answer: D
Explanation:
Comprehensive and Detailed In-Depth Explanation:To determine which statement is false, we need to analyze the IS-IS topology, the role of multi-topology, the IPv6 summary configuration, and the level-1-2 behavior of IS-IS routers. Let's break it down step by step:
* Understanding the IS-IS Topology and Levels:
* IS-IS supports multiple levels: Level-1 (L1) for intra-area routing, Level-2 (L2) for inter-area routing, and Level-1-2 (L1-2) routers that can operate in both levels and connect L1 and L2 areas.
* In the figure, R1 and R2 are configured as Level-1-2 routers, R3 is a Level-1-2 router, R4 is a Level-1 router, and R5 is a Level-1 router. The area borders are indicated by the system IDs (49.0001 for R4's area and 49.0002 for R3 and R5's area).
* R4's Loopback0 has the IPv6 address 2000::/128, which is a host route (a /128 prefix, representing a single address).
* Multi-Topology IS-IS for IPv6:
* Multi-topology IS-IS allows separate topologies for IPv4 and IPv6, ensuring that IPv6 routes are handled independently. Since multi-topology is enabled on all routers, IPv6 routes (like 2000::
/128 on R4) are advertised and processed within the IPv6 topology.
* This means that IPv6 routes, including the Loopback0 address of R4 (2000::/128), can be advertised across the IS-IS domain, subject to the level and summary configurations.
* IPv6 Summary Configuration (2000::/64 level-1-2):
* The command ipv6 summary 2000::/64 level-1-2 is configured in the IS-IS processes of R1 and R2. This command instructs R1 and R2 (as Level-1-2 routers) to summarize the IPv6 prefix
2000::/64 and advertise it to both Level-1 and Level-2 areas.
* Summarization means that instead of advertising the more specific route (e.g., 2000::/128 from R4), R1 and R2 advertise the less specific summary route 2000::/64. This summary route covers the 2000::/128 address of R4's Loopback0.
* Since R1 and R2 are Level-1-2 routers, they can advertise this summary to both their Level-1 neighbors (like R4 and R3) and Level-2 neighbors (across areas).
* Analyzing Each Statement:
* A. The routing table of R1 contains the route 2000::/64.
* True. R1 is a Level-1-2 router with the ipv6 summary 2000::/64 level-1-2 command configured. It advertises and installs the summary route 2000::/64 in its routing table, covering the more specific 2000::/128 from R4. Additionally, as a Level-1-2 router, R1 can learn and retain this route from its IS-IS neighbors.
* B. The routing table of R2 contains the route 2000::/64.
* True. Similar to R1, R2 is also a Level-1-2 router with the same summary command. It advertises and installs the 2000::/64 summary route in its routing table, covering R4's
2000::/128.
* C. The routing table of R3 contains the route 2000::/128.
* False. R3 is a Level-1-2 router in area 49.0002, but it receives routes from R2 (a Level-1-2 router in area 49.0001). Because R1 and R2 are configured with the ipv6 summary 2000::
/64 level-1-2 command, they advertise the summary route 2000::/64 to their neighbors, including R3. IS-IS prefers the most specific route, but the summary configuration ensures that the more specific 2000::/128 from R4 is not advertised beyond R1 and R2 unless explicitly allowed. Since R3 is in a different area and receives the summary 2000::/64 from R2, it does not have the more specific 2000::/128 route in its routing table. Therefore, this statement is false.
* D. The routing table of R2 contains the route 2000::/128.
* True. R2, as a Level-1-2 router, is directly connected to R4 (a Level-1 router) via the IS-IS topology. R4 advertises its Loopback0 address 2000::/128 to R2. Even though R2 is configured to summarize 2000::/64, it can still retain the more specific 2000::/128 route in its routing table because IS-IS allows routers to keep both summary and more specific routes, with the more specific route taking precedence for routing decisions.
* Conclusion:
* The false statement is C, as R3 does not contain the route 2000::/128 in its routing table. Instead, R3 receives the summary route 2000::/64 from R2 due to the summary configuration on R1 and R2.
References to HCIP-Datacom-Advanced Routing & Switching Technology Documents:
* HCIP-Datacom-Advanced Routing & Switching Technology V1.0, Section on IS-IS: Multi-Topology IS-IS for IPv6, Level-1 and Level-2 Operations, and Route Summarization.
* HCIP-Datacom-Advanced Routing & Switching Technology V1.0, Chapter on IPv6 Routing Protocols:
IS-IS Configuration and Behavior, Including Summary Address Commands and L1/L2 Interactions.
NEW QUESTION # 201
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?
Answer: A,C,D
NEW QUESTION # 202
OSPFv3 runs on R1 and R2, and the IPv6 addresses configured for the interfaces are marked in the figure.
The router IDs of R1 and R2 are 10.0.1.1 and 10.0.2.2, respectively.
Which of the following statements is true?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding Intra-Area-Prefix-LSA (Type 9) in OSPFv3
* OSPFv3 uses the Intra-Area-Prefix-LSA (Type 9) to advertise IPv6 prefixes associated with either:
* A Router-LSA (Type 1) # Describes links and interfaces.
* A Network-LSA (Type 2) # Advertises multi-access networks (if a Designated Router exists).
* Each router generates one Intra-Area-Prefix-LSA to advertise its own IPv6 prefixes.
Prefix Analysis for Each Router
R1 ' s IPv6 Prefixes:
* 2000:12::1/64
* 2001:12::1/64
* 2002:12::1/64
* 2003:12::/64 (Shared link with R2)
* Total Prefixes in R1's Intra-Area-Prefix-LSA = 4
# R1 advertises four prefixes in its Intra-Area-Prefix-LSA.
R2 ' s IPv6 Prefixes:
* 2003:12::2/64 (Shared link with R1)
* Total Prefixes in R2's Intra-Area-Prefix-LSA = 1
# R2 advertises only one prefix in its Intra-Area-Prefix-LSA.
Checking Each Option:
# A. The Intra-Area-Prefix-LSA generated by R2 describes three prefixes. (# False, R2 only has one prefix).
# B. The Intra-Area-Prefix-LSA generated by R1 describes four prefixes. (# True, R1 has four prefixes).
# C. The Intra-Area-Prefix-LSA generated by R2 describes four prefixes. (# False, R2 only has one prefix).
# D. The Intra-Area-Prefix-LSA generated by R1 describes three prefixes. (# False, R1 has four prefixes).
Final Conclusion:
# B. The Intra-Area-Prefix-LSA generated by R1 describes four prefixes.
Thus, the correct answer is: B. The Intra-Area-Prefix-LSA generated by R1 describes four prefixes.
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPFv3 LSAs and IPv6 Prefix Advertisement Huawei Official HCIP-Datacom Study Guide - OSPFv3 Intra-Area-Prefix-LSA and Router-LSA Relationship Huawei Documentation on OSPFv3 Prefix Propagation Mechanisms
NEW QUESTION # 203
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