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Updated: Oct 08, 2026
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Huawei H12-821_V1.0 Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Core Technology V1.0 |
| Exam Number: | H12-821_V1.0 |
| Exam Duration: | 90 minutes |
| Exam Format: | Fill-in-the-blank, True/false, Multiple-choice, Single-choice, Drag-and-drop |
| Passing Score: | 600/1000 |
| Exam Price: | 300 USD |
| Related Certifications: | HCIA-Datacom HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60 |
| Available Languages: | Japanese, Chinese, English |
| Recommended Training: | Huawei Official HCIP-Datacom Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Huawei H12-821_V1.0 Sample Questions |
| Exam Way: | Online proctored or onsite testing at Pearson VUE centers |
| Pre Condition: | Recommended to have HCIA-Datacom certification or equivalent knowledge and 1–2 years of network engineering experience |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/h12-821_v1.0 |
Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
| Topic 2: BGP Fundamentals | 17% | - BGP configuration and policy application - BGP characteristics and working principles - BGP route attributes and selection |
| Topic 3: Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Spanning Tree Protocol - Link aggregation and stack technology |
| Topic 4: WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| Topic 5: IPv6 Technologies | 3% | - IPv6 address structure and configuration - IPv6 routing protocols |
| Topic 6: OSPF Fundamentals | 16% | - OSPF special applications and troubleshooting - OSPF configuration and optimization - OSPF principles and operation mechanisms |
| Topic 7: Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| Topic 8: Network Security | 8% | - AAA authentication - ACL and packet filtering - Attack defense and security policy |
| Topic 9: Multicast Technologies | 9% | - IGMP protocol - Multicast basic concepts - PIM protocol |
| Topic 10: Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| Topic 11: Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| Topic 12: Routing and Traffic Control | 10% | - Route import and redistribution - Routing policy and filtering - Policy-based routing |
| Topic 13: Network Reliability | 7% | - BFD technology - Device redundancy and link backup - VRRP protocol |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
Which of the following statements are true about the Local_Pref attribute in BGP? (Choose all that apply)
- A. The default Local_Pref value is 0.
- B. The Local_Pref attribute can be transmitted to all BGP peers.
- C. The greater the value of the Local_Pref attribute, the higher the priority.
- D. The Local_Pref value remains unchanged during transmission unless it is affected by a routing policy.
Correct Answer: C,D 🗳️
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In IPsec, an SA (Security Association) is uniquely identified by three parameters. Which of the following parameters does not belong to the 3-tuple information?
- A. Destination IP address
- B. Security protocol ID
- C. SPI
- D. Key exchange protocol
Correct Answer: D 🗳️
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IGMP group entries play an important role in multicast forwarding. An administrator runs a command to view information about a multicast entry. The information is as follows:
sql
Copy
< HUAWEI > display igmp group
Interface group report information
Vlanif100(10.1.6.2):
Total 1 IGMP Group reported
Group Address Last Reporter Uptime Expires
225.1.1.2 10.1.6.10 00:02:04 00:01:17
Given this, which of the following statements are true?
- A. 225.1.1.2 is the address of the group that the user joins.
- B. Expires indicates the aging time of the IGMP group.
- C. This entry is created when the device receives an IGMP Join message from a user.
- D. This entry can be used to construct the corresponding (S, G) entry.
Correct Answer: A,B,C 🗳️
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Which of the following statements regarding the LSA age field are true?
- A. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.
- B. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- C. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
- D. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.
Correct Answer: C,D 🗳️
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To reduce the workload of configuring VPN instances, the administrator can import interface IP addresses and features to the device in batches using a script, and then manually bind the interfaces to VPN instances.
- A. TRUE
- B. FALSE
Correct Answer: B 🗳️
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