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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0 |
| Real Exam Qty: | 60 |
| Available Languages: | English, Chinese |
| Passing Score: | 600/1000 |
| Exam Duration: | 90 minutes |
| Related Certifications: | HCIA-Datacom HCIP-Datacom-Core Technology HCIE-Datacom |
| Exam Price: | USD 200 (varies by region) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple choice, True/False, Single choice |
| Recommended Training: | Huawei Talent Online Learning |
| Exam Registration: | Huawei Certification Official Portal |
| Sample Questions: | Huawei H12-831_V1.0-ENU 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 a highly sought-after certification for professionals in the field of networking. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is designed to validate the skills and knowledge required to plan, design, and implement advanced routing and switching solutions using Huawei devices.
NEW QUESTION # 197
On the OSPF network shown in the figure, area 1 is an NSSA, area 2 is a common area, and R4 imports an external route 10.0.4.4/32. The router ID of each router is 10.0.X.X, where X is the number of the router. The command asbr-summary 10.0.4.0 255.255.255.0 is configured in the OSPF processes of R1 and R3. Which of the following statements is true?
Answer: C
Explanation:
# Topology Key Points:
* Area 1 is an NSSA (Not-So-Stubby Area).
* R4 is injecting an external route: 10.0.4.4/32.
* The command asbr-summary 10.0.4.0 255.255.255.0 is applied on R1 and R3, which are ABRs connected to the NSSA.
# Behavior of asbr-summary in Huawei OSPF:
* The asbr-summary command summarizes external routes from an ASBR into an area.
* It causes the ABR to generate a summary LSA (Type-3) for the summary prefix instead of the more specific original routes.
* As a result, routers in other areas receive only the summary (e.g., 10.0.4.0/24), not the original more- specific route (10.0.4.4/32).
# What Happens in Each Router:
* # R4 originates route 10.0.4.4/32 as an NSSA Type-7 LSA.
* # R1, as an ABR, translates the Type-7 LSA to Type-5 and applies the asbr-summary, advertising
10.0.4.0/24 into Area 0.
* # R3, another ABR, learns the summarized route and advertises 10.0.4.0/24 into Area 2.
* # R3 will NOT contain 10.0.4.4/32, only the summarized 10.0.4.0/24.
# Final Answer: C. The routing table of R3 contains the route 10.0.4.0/24.
Official Huawei Extract:
" When a summary route is configured using the asbr-summary command, the ABR or ASBR advertises the summary route into other areas instead of advertising specific routes. This helps reduce the size of the LSDB and routing table in large-scale networks. "
[Huawei HCIA-Datacom Certification Guide - OSPF Route Summarization & NSSA Behavior]
NEW QUESTION # 198
Regarding the MPLS forwarding process, which description of the ingress node forwarding is correct? (Multiple choice)
Answer: A,B
NEW QUESTION # 199
On the IS-IS network shown in the figure, R1 imports a default route using the default-route-advertise always level-1 command. Which of the following statements are true?
Answer: B,C,D
Explanation:
This IS-IS network includes:
* R1 as a Level-1 router (area-internal only)
* R2 as a Level-1-2 router (acts as a border between L1 and L2)
* R3 as a Level-2 router (external to area 49.0001)
The command on R1 :
plaintext
CopyEdit
default-route-advertise always level-1
means R1 advertises a default route (0.0.0.0/0) to other Level-1 routers . This helps L1 routers like R1 route toward unknown destinations via R2 .
Now analyzing each option:
* # Option A: 10.0.2.2 can ping 10.0.3.3 # Correct R2 is Level-1-2 and has a Level-2 adjacency to R3.
So R2 (10.0.2.2) can reach R3 ' s loopback (10.0.3.3).
* # Option B: 10.0.12.2 can ping 10.0.3.3 # Correct 10.0.12.2 is on R2, and R2 has full visibility of R3 through Level-2. Thus, it can route traffic to 10.0.3.3.
* # Option C: 10.0.1.1 can ping 10.0.3.3 # Incorrect R1 is Level-1 only and cannot see Level-2-only destinations like 10.0.3.3. There is no route leaking from R2's L2 database into the L1 area.
* # Option D: 10.0.1.1 can ping 10.0.2.2 # Correct Both are in the Level-1 area (49.0001). The IS-IS Level-1 adjacency allows reachability between these loopbacks.
# Official Huawei Extract:
" In IS-IS, Level-1 routers cannot learn Level-2-only routes unless route leaking is configured. A Level-
1-2 router like R2 can route between L1 and L2 domains. The command default-route-advertise always level-1 causes R2 to advertise a default route into the Level-1 area, enabling R1 to forward unknown destinations. However, L1 routers still cannot reach L2-only loopbacks like R3's unless route leaking is explicitly configured. "
- [Huawei HCIA-Datacom Certification Guide - Chapter: IS-IS Route Types and Default Route Advertisement]
NEW QUESTION # 200
A network engineer captured a multicast data frame whose destination MAC address is 01-00-5e-
00-01-01. Based on this analysis, which of the following cannot be the destination IPv4 address?
Answer: C
NEW QUESTION # 201
As shown in the figure, all interfaces of the router enable OSPF, and the configurations of R1, R2, and R3 are as shown in the figure, then () will generate a Type 3 LSA with a linkState ID other than 0.0.0.0. (Please fill in the device name, such as R1)
Answer:
Explanation:
R3
NEW QUESTION # 202
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