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Updated: Sep 14, 2026
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Huawei H12-831-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831-ENU |
| Certificate Validity Period: | 3 years from passing date |
| Exam Duration: | 90 minutes |
| Related Certifications: | HCIP-Datacom-Core Technology HCIA-Datacom HCIE-Datacom |
| Available Languages: | Chinese, English |
| Exam Price: | 180 USD |
| Real Exam Qty: | 60-70 |
| Passing Score: | 600/1000 |
| Exam Format: | Multiple-choice, Drag-and-drop, Single-choice, True/false, Scenario-based |
| Recommended Training: | Huawei Official Training HCIP-Datacom Advanced Routing & Switching Course |
| Exam Registration: | Pearson VUE Huawei Talent Online |
| Sample Questions: | Huawei H12-831-ENU Sample Questions |
| Exam Way: | Online-proctored or Onsite at Pearson VUE test centers |
| Pre Condition: | Recommended to hold HCIA-Datacom or equivalent knowledge; no mandatory prerequisite |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification |
Huawei H12-831-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: MPLS and VPN Technologies | 15% | - MPLS fundamentals - MPLS L3VPN - MPLS L2VPN basics |
| Topic 2: Advanced IGP Features | 20% | - OSPF advanced features - Route control and filtering - IS-IS advanced features |
| Topic 3: Advanced Ethernet Technologies | 15% | - STP/RSTP/MSTP - Link aggregation and high availability - VLAN and trunk technologies |
| Topic 4: IPv6 Routing Technologies | 15% | - IPv6 addressing and protocols - IPv4/IPv6 coexistence - IPv6 IGP and BGP |
| Topic 5: Advanced BGP Features | 20% | - BGP route attributes - BGP security and optimization - BGP path selection |
| Topic 6: Network O&M, Troubleshooting and Cutover | 15% | - Network monitoring and management - Fault diagnosis and troubleshooting - Network migration and cutover |
Huawei HCIP-Datacom Sample Questions:
A company consists of a head office and two branch offices, and uses MPLS VPN technology to transmit private network routes. In the networking mode of HuB&Spok. Branches can only send and receive routes to and from the head office, and branches cannot directly send and receive routes to each other. In order to achieve the above requirements, which of the following schemes can the RT settings be? (Multiple choice)
- A. Head Office: Import Target: 12:3; Export Target: 3:12. Branch 1: Import Target: 3:12; Export Target: 12:3. Branch 2: Import Target: 3:12; Export Target: 12:3.
- B. Head Office: Import Target: 2:2; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target: 2:2.
- C. Head Office: Import Target: 1:1, 2:2; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target: 2:2.
- D. Head Office: Import Target: 1:1; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target: 2:2.
Correct Answer: C,D 🗳️
Regarding the difference between NSR and NSF, which is correct?
- A. NSR must rely on neighbor routers to complete
- B. Both NSR and NSF require neighbor routers to complete
- C. NSF does not require neighbor routers to complete
- D. NSF must rely on neighbor routers to complete
Correct Answer: D 🗳️
Regarding the description of the encapsulation format of labels in MPLS, which of the following is correct? (Multiple choice)
- A. The TTL field in the label and the TTL (Time To Live) in the IP packet.
- B. The total length of a single MPLS label is 4 bytes (32bits)
- C. For the packets of Ethernet and PPP, the label stack is located between the Layer 2 header and the data like the 'cushion layer': when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag
- D. S field in the label is 1bit
Correct Answer: A,B 🗳️
What types of Link Types are included in the Router LSA in OSPF? (Multiple choice)
- A. Vlink
- B. TransNet
- C. StubNet
- D. P-2-P
Correct Answer: A,B,C,D 🗳️
Regarding the sham link, which of the following descriptions is wrong?
- A. In order to forward the VPN flow through the MPLS backbone network, the routing cost of the sham link should be less than the OSPF routing cost of the backdoor road
- B. The endpoint address of the sham link is published by BGP as a VPNv4 address. Routes that have passed through the sham link can also be imported into BGP in the form of VPNv4 routes.
- C. Sham link can be configured in any area, it needs to be configured manually, and there must be a route to the destination address of the sham link (the sham link endpoint address of the peer PE) in the local VPN instance
- D. A sham link is a link between two VPN instances, and each VPN instance must have an endpoint address of the sham link, which must be a Loopback with a 32-bit mask in the VPN address space on the PE router interface address
Correct Answer: B 🗳️
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