Try and practice the latest Huawei : H12-821_V1.0 real questions & answers
Updated: Jul 29, 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 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Chinese, Japanese |
| Exam Price: | USD 300 |
| Exam Format: | Single-choice questions, Multiple-choice questions, True/False, Drag and drop, Short answer |
| Related Certifications: | HCIA-Datacom HCIP-Datacom-Advanced Routing & Switching HCIE-Datacom |
| Passing Score: | 600/1000 |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60-80 (varies) |
| Recommended Training: | Huawei HCIP-Datacom Training Resources Huawei Learning Portal - Datacom Track |
| Exam Registration: | Pearson VUE Huawei Exams Huawei Certification Official Portal |
| Sample Questions: | Huawei H12-821_V1.0 Sample Questions |
| Exam Way: | Computer-based exam (onsite test centers or online proctoring depending on region) |
| Pre Condition: | Recommended to hold HCIA-Datacom or equivalent networking knowledge |
| Official Syllabus URL: | https://certification.huawei.com/ |
Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Switching Technologies | 7% | - VLAN and STP fundamentals |
| IPv6 | 3% | - IPv6 addressing and routing |
| Network Reliability | 8% | - Redundancy and failover mechanisms |
| IS-IS | 8% | - IS-IS protocol fundamentals |
| Multicast | 9% | - IGMP and PIM concepts |
| Large-scale WLAN Architecture | 6% | - Enterprise WLAN deployment basics |
| Network Service and Management | 2% | - Network management basics |
| Network Security | 9% | - ACL and basic security mechanisms |
| BGP | 17% | - BGP policy and attributes - BGP path selection |
| Network Solution | 2% | - Integrated network design scenarios |
| OSPF | 16% | - OSPF core concepts - OSPF areas and LSDB |
| Routing Fundamentals | 3% | - Network basics and routing principles |
| Routing and Traffic Control | 10% | - Traffic engineering basics - Policy-based routing |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
1. The figure shows an inter-AS multicast network. Which of the following protocols will be applied to this network architecture?
A) MSDP
B) MBGP
C) PIM
D) IGMP
2. VRRP is implemented based on the priority and preemption functions of VRRP routers. Which of the following statements is false about the VRRP solution?
A) The master periodically sends VRRP Advertisement packets in the VRRP group to advertise its configurations such as the priority.
B) When preemption is enabled, a backup device preempts the master role if it has a higher priority than the current master.
C) When preemption is disabled, a backup device does not preempt the master role even if it has a higher priority than the current master, provided that the current master is working properly.
D) Even if the VRRP device is the IP address owner, it still needs to participate in the election and does not directly transition to the Master state when receiving a message indicating that the interface goes Up.
3. The AS_Path attribute is an important BGP attribute used for route selection. Which of the following statements are true about this attribute?
A) When a route is advertised to an IBGP peer, the AS_Path remains unchanged.
B) BGP ignores AS_Confed_Sequence and AS_Confed_Set when calculating the AS_Path length.
C) This attribute is a well-known discretionary attribute that must be identified by all BGP routers.
D) This attribute can be used to prevent BGP routing loops.
4. During routine operation and maintenance, an engineer checks the IGMP configuration on RTA. The configuration is as follows:
Interface information of VPN-Instance: public net
GigabitEthernet0/0/1 (192.168.1.1):
IGMP is enabled
Current IGMP version is 2
IGMP state: up
IGMP group policy: none
IGMP limit: -
Value of query interval for IGMP (negotiated): -
Value of query interval for IGMP (configured): 60 s
Value of other querier timeout for IGMP: 0 s
Value of maximum query response time for IGMP: 10 s
Querier for IGMP: 192.168.1.1 (this router)
Given this, which of the following statements is false?
A) The interval for sending Group-Specific Query messages is 60s.
B) The IP address of the interface is 192.168.1.1.
C) The maximum response time to Query messages is 10s.
D) The IGMP version is IGMPv2.
5. When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.
A) TRUE
B) FALSE
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: A,B,D | Question # 4 Answer: A | Question # 5 Answer: A |
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