Updated: Jul 25, 2026
No. of Questions: 611 Questions & Answers with Testing Engine
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| Certification Vendor: | Huawei |
| Exam Name: | HCIE-Datacom V1.0 Written Exam |
| Exam Number: | H12-891_V1.0 |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 90-120 |
| Available Languages: | English, Chinese |
| Related Certifications: | HCIA-Datacom HCIP-Datacom HCIE-Datacom Lab (H12-892) |
| Certificate Validity Period: | 3 years |
| Passing Score: | 600/1000 |
| Exam Price: | USD 300-600 (varies by region) |
| Exam Format: | Single choice, Multiple choice, Drag and drop (may vary) |
| Recommended Training: | HCIE-Datacom Training Resources (Huawei Learning) |
| Exam Registration: | Huawei Certification Official Registration |
| Sample Questions: | Huawei H12-891_V1.0-ENU Sample Questions |
| Exam Way: | Online proctored or authorized test center (varies by region) |
| Pre Condition: | Recommended: HCIP-Datacom certification or equivalent networking experience |
| Official Syllabus URL: | https://certification.huawei.com |
| Section | Objectives |
|---|---|
| IP Network Fundamentals | - Network architecture and protocols - TCP/IP and OSI model |
| Advanced Networking Technologies | - IPv6 deployment and transition - MPLS and VPN technologies |
| Network Automation and Programmability | - Network automation tools and APIs - SDN concepts |
| Routing and Switching | - OSPF / IS-IS routing principles - BGP fundamentals and policy control |
| Network Security | - Basic security mechanisms - Network attack prevention and isolation |
1. ISIS elects DIS in broadcast multiplexed access networks, and the following statement about DIS is correct? (Multiple choice)
A) DIS supports preemption function, after the new DIS preemption is successful, there is no need to flood any LSP packet
B) In a broadcast multiple access network, DIS sends Hello PDUs at three times the frequency
C) ISIS elects dis by comparing priorities, and mac addresses if the priorities are consistent
D) DIS guarantees database synchronization by periodically sending CSNP messages
2. Both the CSNP packet of ISlS and the DD packet of OSPF have a role in the MA network, describing the role of the link state database summary, which is correct compared to the following statements of these two types of messages
A) Both packets need to be confirmed to the terminal router after being sent, otherwise they need to be retransmitted
B) Once the adjacency relationship is established, the CSRP packet and the D message will stop sending
C) OSPF is not identity bound to dr/BDR; the CSN message is generated only by DIS
D) The two packets do not need to be confirmed to the router after they are sent the master-slave relationship in the DD message interaction of
3. In the VXLAN implementation, the mapping relationship between VNI and BD is
A) N: M
B) 1:1
C) N:1
D) 1:N
4. The following is correct about the LSA of OSPFv3
A) The Link State ID of inter-area prefix-SA, which contains prefix information
B) When the Referenced Link State Type-2 of the Intra-AreaPrefixLSA, referenced Link State ID Contains the interface ID of the DR
C) Router-LSA and Network-LSA do not contain routing information
D) Inter-Area PrefirLSA also contains LinkLocal Information
5. The Path Selection tool can define multiple entries, which of the following tools will automatically generate a rejection of any entries at the end of the slot
A) Route policy
B) IP-prefix
C) Community -filter
D) AS-Path- filter
Solutions:
| Question # 1 Answer: B,C,D | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: B,C | Question # 5 Answer: A,B,C,D |
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