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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0-ENU |
| Available Languages: | English, Chinese |
| Exam Duration: | 90 minutes |
| Exam Format: | Drag and drop, Multiple-choice questions, Case-based questions, Single-choice questions |
| Certificate Validity Period: | 3 years |
| Related Certifications: | HCIP-Datacom HCIA-Datacom |
| Real Exam Qty: | 60-70 |
| Passing Score: | 600/1000 |
| Exam Price: | $200 USD (varies by region) |
| Recommended Training: | HCIP-Datacom Official Training |
| Exam Registration: | Huawei Certification Official Portal |
| Sample Questions: | Huawei H12-831_V1.0-ENU Sample Questions |
| Exam Way: | Online proctored exam or authorized testing center (onsite) |
| Pre Condition: | Recommended completion of HCIA-Datacom or equivalent networking knowledge |
| Official Syllabus URL: | https://e.huawei.com/en/talent/ |
>> Huawei H12-831_V1.0-ENUファンデーション <<
IT業界の中でたくさんの野心的な専門家がいって、IT業界の中でより一層頂上まで一歩更に近く立ちたくてHuaweiのH12-831_V1.0-ENU試験に参加して認可を得たくて、Huawei のH12-831_V1.0-ENU試験が難度の高いので合格率も比較的低いです。HuaweiのH12-831_V1.0-ENU試験を申し込むのは賢明な選択で今のは競争の激しいIT業界では、絶えず自分を高めるべきです。しかし多くの選択肢があるので君はきっと悩んでいましょう。
Huawei H12-831_V1.0-ENU試験に備えるには、候補者は、TCP/IP、ルーティングプロトコル、ネットワークセキュリティなどのネットワーキングの基礎を確実に理解する必要があります。また、Huaweiネットワーキング製品とソリューションでの協力の経験も必要です。候補者は、公式のHuaweiトレーニングコースを受講したり、書籍、オンラインコース、練習試験などの自己ペースの資料から勉強したりすることで、試験の準備をすることができます。
質問 # 138
In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following descriptions are correct about the processing of the data packet? (Multiple choice)
正解：A、D
質問 # 139
Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on PE?
正解：B
質問 # 140
On the OSPF network shown in the figure, drag the values on the left to the correct positions so that:
* Traffic from PC1 to PC2 follows the path:PC1 -> R1 -> R3 -> R2 -> PC2
* Traffic from PC2 to PC1 follows the path:PC2 -> R2 -> R1 -> PC1
Which of the following OSPF cost values should be assigned to Cost-A, Cost-B, and Cost-C to achieve this routing behavior?
正解：
解説：
Explanation:
* A = 50
* B = 10
* C = 20
Comprehensive and Detailed In-Depth Explanation:
Understanding OSPF Path Selection and Cost Calculation:
* OSPF selects the shortest path (lowest cost) to the destination.
* The OSPF cost is determined by the cumulative sum of interface costs along a path.
* By assigning specific costs to A, B, and C, we can influence OSPF's path selection to meet the desired routing behavior.
Step-by-Step Analysis of Required Traffic Flow:
1. Traffic from PC1 to PC2 must take the route:
PC1 -> R1 -> R3 -> R2 -> PC2
* To force traffic through R3, the cost of the direct link R1 -> R2 (Cost-A) must be higher than the alternative path via R3.
* We assign Cost-A = 50 (high cost) to discourage direct routing from R1 -> R2.
* The cost of R1 -> R3 (Cost-C) should be lower, so we assign Cost-C = 20.
* The cost of R3 -> R2 (default Cost-20) remains unchanged.
* Total cost via R3: 20 (R1->R3) + 20 (R3->R2) = 40, which is less than the direct link of 50, so OSPF prefers this path.
# Traffic follows: PC1 -> R1 -> R3 -> R2 -> PC2
2. Traffic from PC2 to PC1 must take the route:
PC2 -> R2 -> R1 -> PC1
* We need to make R2 -> R1 (Cost-B) the best (lowest cost) route for return traffic.
* Assign Cost-B = 10 (low cost).
* This ensures that R2 prefers the direct path R2 -> R1 instead of R2 -> R3 -> R1 (which costs
20+20=40).
# Traffic follows: PC2 -> R2 -> R1 -> PC1
Final Cost Assignments for Correct Routing Behavior:
Cost
Assigned Value
Reason
Cost-A (R1 -> R2)
50
High to discourage direct R1->R2 routing
Cost-B (R2 -> R1)
10
Low to ensure PC2->PC1 prefers direct R2->R1
Cost-C (R1 -> R3)
20
Medium to encourage R1->R3->R2 path
Key Takeaways:
* Higher OSPF cost discourages path selection.
* Lower OSPF cost encourages path selection.
* By manipulating OSPF cost values, we achieve asymmetric routing between PC1 and PC2.
* This aligns with OSPF path selection principles covered in HCIP-Datacom certification.
HCIP-Datacom-Advanced Routing & Switching Technology References:
* Huawei HCIP-Datacom Official Certification Guide, Chapter on OSPF Cost Calculation and Path Selection.
* Huawei Enterprise Networking Training Materials, OSPF Path Optimization Techniques.
* Huawei Datacom Configuration Guide, OSPF Cost and Traffic Engineering.
質問 # 141
In the IS-IS IPv6 network shown in the figure, all routers have multi-topology enabled. The IPv6 address of the R4 Loopback0 interface is 2000::4/128, and "ipv6 summary 2000::64 level-1-2" is configured in the R4 IS-IS process.
Which of the following is wrong in the default case?
正解：B
質問 # 142
In a networking environment where the network is relatively stable and has high requirements for route convergence time, you can specify the OSPF LSA update interval to 0 to cancel the LSA update interval, so that topology or route changes can be immediately published to the network through LSA, thereby speeding up the route convergence speed in the network.
正解：A
質問 # 143
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