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Updated: Sep 06, 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 |
| Passing Score: | 600/1000 |
| Exam Price: | 180 USD |
| Exam Format: | Scenario-based, Multiple-choice, Drag-and-drop, Single-choice, True/false |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Chinese |
| Related Certifications: | HCIA-Datacom HCIP-Datacom-Core Technology HCIE-Datacom |
| 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 |
|---|---|---|
| Advanced Ethernet Technologies | 15% | - STP/RSTP/MSTP - VLAN and trunk technologies - Link aggregation and high availability |
| MPLS and VPN Technologies | 15% | - MPLS fundamentals - MPLS L2VPN basics - MPLS L3VPN |
| Network O&M, Troubleshooting and Cutover | 15% | - Network monitoring and management - Network migration and cutover - Fault diagnosis and troubleshooting |
| Advanced BGP Features | 20% | - BGP route attributes - BGP security and optimization - BGP path selection |
| Advanced IGP Features | 20% | - IS-IS advanced features - Route control and filtering - OSPF advanced features |
| IPv6 Routing Technologies | 15% | - IPv6 IGP and BGP - IPv4/IPv6 coexistence - IPv6 addressing and protocols |
Huawei HCIP-Datacom Sample Questions:
IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculation. As shown in the figure, a campus deploys both IPv4 and IPv6 and runs IS-IS to achieve network interconnection, of which R2 only supports IPv4.
Which of the following statements is true about the topology calculation of this network?
- A. By default, IPv4 and IPv6 networks will be calculated separately to form different shortest path trees
- B. If you want IPv4 and IPv6 network computation to form the same shortest path tree, you need to run the ipv6 enable topology ipv6 command to enable the IPv6 capability of the IS-IS process
- C. By default, in the shortest path tree formed by IPv6 network calculation, the path from R1 to R4 is R1-R2-R4
- D. By default, since R2 does not support Pv6
Which of the following statements about VLAN aggregation is correct? (Multiple choice)
- A. Sub-VLAN is used to isolate broadcast domains
- B. Sub-VLAN contains physical interface. Layer 3 VLANIF interface can be established
- C. Super-VLAN contains only physical interfaces, and does not establish a Layer 3 VLANIF interface
- D. A Super-VLAN can contain one or more Sub-VLANs
When troubleshooting TELNET login failure, which step should be done first?
- A. Check whether the client can ping the server
- B. Check whether the number of users logging in to the device has reached the upper limit
- C. Check whether the protocol configuration allowed for access in the VTY type user interface view is correct
- D. Check whether ACL is configured in the VTY user interface view on the device
Different virtual machines can use the VTEP tunnel established by vswitchi to communicate with VXLAN. Then the communication process of VXLAN is: 1 The source VTEP encapsulates the ARP broadcast sent by the source VM into a multicast packet and sends it to the L3 network. 2 After receiving the multicast packet, the destination VTEP learns the mapping relationship between the source VM and VTEP, and forwards the multicast packet to the local VM. 3 Local unicast response. 4 The destination VTEP encapsulates the Vxlan tunnel, establishes a mapping table and encapsulates it, and then unicasts it to the source VTEP. 5 The source VTEP receives the response and establishes the mapping relationship between the target VM and the target VEP, removes the tunnel and forwards it to the source VM. 6 The source VM and the target VM communicate unicast packets through the tunnel.
- A. 1-2-3-4-5-6
- B. 3-5-2-4-1-3
- C. 1-5-6-4-3-2
- D. 1-3-2-4-6-5
The network administrator A wants to use the AS-Path Fiter to match the routing entries of the BGP routing attribute AS_PATH[100 200 300]. The network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy the network administrator A's requirements? (Multiple choice)
- A. Method D
- B. Method A
- C. Method C
- D. Method B
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