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Updated: Sep 12, 2026
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Huawei H12-891_V1.0-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 Written Exam |
| Exam Number: | H12-891_V1.0 |
| Related Certifications: | HCIA-Datacom HCIP-Datacom HCIE-Datacom Lab (H12-892) |
| Available Languages: | English, Chinese |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD 300-600 (varies by region) |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 90-120 |
| Exam Format: | Drag and drop (may vary), Multiple choice, Single choice |
| Passing Score: | 600/1000 |
| 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 |
Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Automation and Programmability | - Network automation tools and APIs - SDN concepts |
| Topic 2: IP Network Fundamentals | - Network architecture and protocols - TCP/IP and OSI model |
| Topic 3: Network Security | - Basic security mechanisms - Network attack prevention and isolation |
| Topic 4: Routing and Switching | - OSPF / IS-IS routing principles - BGP fundamentals and policy control |
| Topic 5: Advanced Networking Technologies | - IPv6 deployment and transition - MPLS and VPN technologies |
Huawei HCIE-Datacom V1.0 Sample Questions:
In an MPLS IBGP VPN environment, if tags are distributed only through BGP, LDP, the MPLS tags for a message can be up to two layers of tags.
- A. False
- B. True
Correct Answer: B 🗳️
WRED is configured on the newly deployed router HW. The following description of the WRED feature is correct as? (Multiple select).
- A. When traffic exceeds the minimum threshold, WRED starts dropping all ingress traffic (tail drops).
- B. WRED can set different drop thresholds and packet loss rates for packets of different priority
- C. Avoid global synchronization by selectively dropping multiple TCP streams Low- bandwidth traffic is easier to drop than high-bandwidth traffic
Correct Answer: B,C 🗳️
RTA is the source DR router, RTB is the RP router, and the multicast source sends multicast data to the RTA, but the PIM is not visible on the RTB Register the multicast source to which the message is registered, then the possible causes are?
- A. The multicast network dynamically elects the RP instead RTA failed RPF check for BSR
- B. RTB to RTA has no unicast routing, causing the RTB to fail RPF checks for the source
- C. Multicast network statically configures RP, while RTA router does not statically configure RP
- D. The RP elected by RTA is not an RTB
Correct Answer: A,B,C,D 🗳️
When deploying BGP/MPLS IPVPN, OSPF's VPN route tag is not present
The extended properties of MP-BGP are passed only locally, only locally, and only meaningful on routers that receive MP-BGP routes and generate OSPF LSAs.
- A. FALSE
- B. TRUE
Correct Answer: B 🗳️
Which of the following options enables encapsulation and unencapsulation of VXLAN messages?
- A. VTEP
- B. BD
- C. VLANIF
- D. VBDIF
Correct Answer: A 🗳️
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