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Updated: Sep 17, 2026
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Huawei H12-821_V1.0-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Core Technology V1.0 |
| Exam Number: | H12-821_V1.0-ENU |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Chinese |
| Exam Format: | True/False, Single-choice, Multiple-choice, Drag-and-drop |
| Passing Score: | 600/1000 |
| Exam Price: | 300 USD |
| Related Certifications: | HCIP-Datacom-Campus Network Planning and Deployment HCIP-Datacom-Network Automation Developer HCIP-Datacom-Advanced Routing & Switching Technology |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60 |
| Recommended Training: | Huawei Official Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Huawei H12-821_V1.0-ENU Sample Questions |
| Exam Way: | Online proctored / Onsite at Pearson VUE test centers |
| Pre Condition: | Recommended: HCIA-Datacom certification or equivalent knowledge; 1–2 years of networking experience |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/h12-821_v1.0 |
Huawei H12-821_V1.0-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: BGP Core Knowledge | 17% | - BGP deployment and optimization - BGP concepts and attributes - BGP route selection and control |
| Topic 2: Routing Basics | 3% | |
| Topic 3: IPv6 Core Knowledge | 3% | - IPv6 addressing and header - IPv6 routing protocols |
| Topic 4: Network Service and Management | 2% | |
| Topic 5: Switching Core Knowledge | 7% | - Spanning Tree Protocol - VLAN and trunking - Link aggregation |
| Topic 6: Large-scale WLAN Networking Architecture | 6% | |
| Topic 7: IS-IS Core Knowledge | 8% | - IS-IS routing and configuration - IS-IS protocol fundamentals |
| Topic 8: Network Solutions | 2% | |
| Topic 9: OSPF Core Knowledge | 16% | - OSPF configuration and troubleshooting - OSPF route calculation and selection - OSPF principles and operation |
| Topic 10: Routing and Traffic Control | 10% | - Traffic engineering and control - Routing policy and filtering |
| Topic 11: Multicast Basics | 9% | - IGMP and PIM protocols - Multicast principles |
| Topic 12: Network Security Basics | 9% | - ACL and packet filtering - AAA and access control - Security defense technologies |
| Topic 13: Network Reliability Basics | 8% | - VRRP and redundancy - BFD and fault detection - High availability design |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
In OSPF, if the network type is NBMA or broadcast and there are two or more routers, DR and BDR must be specified.
- A. FALSE
- B. TRUE
Correct Answer: A 🗳️
As shown in the figure, R1 and R2 form a VRRP backup group 1. By executing the vrrp vrid 1 vitual-ip () command on R1, it can become the IP address owner, making R1 the Master and R2 the Backup.
Correct Answer:
192.168.1.254
Which statement about IGMP Proxy is correct? (Multiple choice)
- A. IGMP Proxy can work with NQA to detect the link status and realize fast switchover between active and standby links.
- B. The downstream interface of the IGMP Proxy device generates a multicast forwarding entry through the information that the member host joins and leaves the multicast group
- C. The IGMP Proxy device cannot replace the IGMP querier to send query messages to downstream member hosts to maintain group membership
- D. IGMP Proxy is usually deployed on devices between member hosts of access devices
Correct Answer: A,B,D 🗳️
What packet types does OSPF include? (Multiple choice)
- A. Hello
- B. Link State Request
- C. Link State DD
- D. Database Description
Correct Answer: A,B,D 🗳️
A network engineer outputs the following information when troubleshooting OSPF protocol faults.
Based on this, determine what causes the adjacency relationship to fail to be established normally?
- A. The IP address codes of the interfaces are inconsistent
- B. Process numbers are inconsistent
- C. Router ID conflict
- D. Area code mismatch
Correct Answer: D 🗳️
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