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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 Written Exam |
| Exam Number: | H12-891_V1.0 |
| Exam Price: | USD 300 (approx.) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple choice questions, Single choice questions |
| Related Certifications: | HCIP-Datacom HCIA-Datacom HCIE-Datacom |
| Available Languages: | Chinese, English |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 120 minutes |
| Passing Score: | 600/1000 |
| Recommended Training: | Huawei Learning Platform HCIE-Datacom Official Training |
| Exam Registration: | Huawei Certification Exam Registration Huawei Talent Certification Platform |
| Sample Questions: | Huawei H12-891_V1.0 Sample Questions |
| Exam Way: | Computer-based online or authorized test center exam (via Huawei certification system / Pearson VUE where applicable). |
| Pre Condition: | Recommended to hold HCIP-Datacom certification or equivalent knowledge before attempting HCIE-Datacom exam. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert/overview |
>> H12-891_V1.0 Exam Quizzes <<
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Huawei H12-891_V1.0 Exam is a four-hour long exam that consists of a written test and a lab test. The written test is designed to assess the candidate's theoretical knowledge of datacom technology, while the lab test is designed to assess their practical skills. The lab test involves configuring and troubleshooting a network setup in a simulated environment.
NEW QUESTION # 175
The following figure shows the inter-AS MPLS VPN Option B solution. If ASBR-PE1 and ASBR-PE2 only transmit VPNv4 routes, you can run the following command on ASBR-PE1:
[ASBR-PE1-bgp-af-vpnv4] undo peer 10.0.34.4 enable
Answer: A
Explanation:
Comprehensive and Detailed In-Depth
In the inter-AS MPLS VPN Option B solution:
Option B establishes a multi-hop eBGP connection between the ASBRs (ASBR-PE1 and ASBR-PE2) to exchange VPNv4 routes.
In this setup, the ASBRs exchange labeled VPNv4 routes via MP-BGP (Multiprotocol BGP).
The command:
[ASBR-PE1-bgp-af-vpnv4] undo peer 10.0.34.4 enable
is used to disable VPNv4 route exchange between the ASBR-PE1 and ASBR-PE2.
If this command is executed, ASBR-PE1 will not transmit VPNv4 routes to ASBR-PE2, breaking the inter-AS VPN connectivity.
Therefore, the statement is FALSE because ASBR-PE1 and ASBR-PE2 must exchange VPNv4 routes to maintain connectivity between the VPN sites across different ASes.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei MPLS VPN Configuration Guide
Inter-AS Option B (eBGP Multi-Hop) for MPLS VPNs
NEW QUESTION # 176
In the small and midsize campus network design based on the Huawei CloudCampus Solution, when over 100 branches need to communicate with each other, which of the following interconnection networking models is recommended?
Answer: A
Explanation:
Comprehensive and Detailed
✔ Hub-Spoke networking is the most efficient and scalable model for interconnecting 100+ branches in a small and midsize campus network.
✔ Why Hub-Spoke?
Centralized Control: A hub router manages communication between spoke routers (branch sites).
Reduced Complexity: Unlike full-mesh, which requires N(N-1)/2* connections, hub-spoke minimizes link costs.
Easier Management: Policy enforcement and security are centralized at the hub site.
✔ Why Not Other Options?
❌ A (Direct Networking) → Suitable for small networks, but inefficient for 100+ branches.
❌ B (Full-Mesh Networking) → High cost and complexity, requiring too many links.
❌ D (Partial-Mesh Networking) → More scalable than full-mesh, but hub-spoke is more optimized for large branch networks.
📖 Reference: Huawei HCIE Datacom - WAN Interconnection Models
NEW QUESTION # 177
To prevent hackers from attacking user devices or networks using MAC addresses, you can configure MAC addresses of untrusted users as blackhole MAC addresses to filter out such invalid MAC addresses. When receiving a packet whose source or destination MAC address is a blackhole MAC address on a device, the device discards the packet.
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Blackhole MAC address configuration is a security feature that helps protect a network from MAC address spoofing or attacks involving untrusted MAC addresses. When you configure a MAC address as ablackhole MAC address, any packet received with that address as the source or destination will be immediately discarded by the device.
This feature is useful in scenarios where certain MAC addresses are identified as malicious or untrusted. By adding these MAC addresses to the blackhole list, the device effectively blocks communication involving these addresses, thereby mitigating security risks.
NEW QUESTION # 178
Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. Drag the HTTP methods to their corresponding functions.
Answer:
Explanation:
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NEW QUESTION # 179
Which of the following statements about BIER (Bit Index Explicit Replication) and PIM (Protocol Independent Multicast) are correct?
Answer: A,B,C
Explanation:
Comprehensive and Detailed Explanation:
# BIER vs. PIM Multicast Routing:
* BIER (Bit Index Explicit Replication) eliminates the need for multicast distribution trees (MDTs) by encoding receiver information into the packet header.
* PIM (Protocol Independent Multicast) requires MDTs to manage multicast forwarding paths.
# Correct Statements:# (A) BIER uses a Bitstring field in packet headers for forwarding.# (B) PIM builds MDTs to define multicast paths.# (C) BIER does NOT require MDTs, making it more scalable.
# (D) Incorrect # BIER does not require hop-by-hop join messages.
# Reference: Huawei HCIE Datacom - BIER and PIM Comparison
NEW QUESTION # 180
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