2026 Huawei H12-891_V1.0: HCIE-Datacom V1.0–The Best Latest Mock Test

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Huawei H12-891_V1.0 Certification Exam is an advanced level certification exam that is designed for IT professionals who want to become experts in datacom technology. HCIE-Datacom V1.0 certification exam is also known as the HCIE-Datacom V1.0 exam. H12-891_V1.0 exam is designed to test the candidate's knowledge and skills in data communication, network management, and network design.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) certification is recognized globally as a mark of excellence in the field of data communication. It is an industry-standard certification that demonstrates a professional's expertise in data communication technologies and their ability to design, implement, and manage complex networks. Holding this certification can lead to better job opportunities, higher salaries, and increased professional credibility.

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The HCIE-Datacom V1.0 certification exam covers a wide range of topics related to data communication technologies, including advanced routing and switching technologies, high availability technologies, network security, network virtualization, and network automation. H12-891_V1.0 Exam is designed to test the candidate's knowledge and skills in these areas and to evaluate their ability to design, deploy, and troubleshoot complex data communication networks.

Huawei HCIE-Datacom V1.0 Sample Questions (Q316-Q321):

NEW QUESTION # 316
Which of the following statements is correct about the differences between NSR and NSF?

A. Both NSR and NSF require the collaboration of neighboring routers.
B. NSF does not require the collaboration of neighboring routers.
C. NSR requires the collaboration of neighboring routers.
D. NSF requires the collaboration of neighboring routers.

Answer: D

Explanation:
Comprehensive and Detailed In-Depth
NSR (Non-Stop Routing) and NSF (Non-Stop Forwarding) are high-availability mechanisms used to maintain network stability during routing process failures:
NSR (Non-Stop Routing):
Operates within the local router only.
Keeps routing information synchronized between the active and standby processes.
Does not require collaboration from neighboring routers.
NSF (Non-Stop Forwarding):
Requires collaboration from neighboring routers that support graceful restart.
The router undergoing failover relies on its neighbors to maintain forwarding tables while control plane recovery takes place.
Neighboring routers must support GR (Graceful Restart) for NSF to function correctly.
Therefore, the correct answer is B because NSF requires neighboring router collaboration, while NSR does not.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei High-Availability Configuration and Maintenance Guide

NEW QUESTION # 317
In route-policy, what are the BGP attributes that can be used for the apply clause?

A. Local-Preference
B. MED
C. Day
D. AS-Path

Answer: A,B,D

NEW QUESTION # 318
IS-IS supports the processing and computation of IPv6 routes by adding ATLPs to carry IPv6 addresses and reachability information.

A. TRUE
B. FALSE

Answer: A

NEW QUESTION # 319
Which of the following statements about static VXLAN tunnel configuration are correct?

A. One NVE interface must be created for each BD. If there are multiple BDs, multiple NVE interfaces must be created.
B. An NVE interface can be associated with multiple VNIs. Therefore, you can create one NVE interface when there are multiple BDs.
C. On an NVE interface, the destination address of a VXLAN tunnel is specified based on the address in the ingress replication list. You can create one NVE interface for multiple VXLAN tunnels.
D. One NVE interface must be created for each VXLAN tunnel, and the source and destination IP addresses must be specified for the NVE interface. Therefore, the number of NVE interfaces is the same as the number of VXLAN tunnels on the VTEP.

Answer: B,C

Explanation:
Understanding VXLAN and NVE Interfaces
VXLAN (Virtual Extensible LAN) allows for Layer 2 network extension over Layer 3 infrastructure.
🔹 Key VXLAN Components:
NVE (Network Virtualization Edge) Interface → VXLAN tunnels are created using one or more NVE interfaces.
BD (Bridge Domain) → Logical grouping of VXLAN traffic.
VNI (VXLAN Network Identifier) → 24-bit unique ID for traffic segmentation.
🔹 Analysis of Each Option:
✅ A. One NVE interface can be used for multiple VXLAN tunnels if ingress replication is used.
Correct: VXLAN tunnels can be dynamically learned using BGP EVPN, meaning multiple tunnels can use the same NVE interface.
✅ B. An NVE interface can be associated with multiple VNIs, allowing multiple BDs on one NVE.
Correct: Each NVE interface can carry multiple VNIs, reducing the need for separate interfaces.
❌ C. One NVE interface must be created per VXLAN tunnel.
Incorrect: Multiple VXLAN tunnels can share a single NVE interface.
❌ D. One NVE must be created for each BD.
Incorrect: One NVE can support multiple BDs.
🔹 Real-World Application:
Cloud Data Centers: VXLAN enables multi-tenant network segmentation.
Campus Networks: Simplifies Layer 2/Layer 3 connectivity across sites.
✅ Reference: Huawei HCIE-Datacom Guide - VXLAN and NVE Configuration

NEW QUESTION # 320
MACsec can provide secure services during MAC-layer data transmitting and receiving. Which of the following services isnotprovided by MACsec?

A. Controllability check
B. User data encryption
C. Integrity check
D. Data source authenticity verification

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
MACsec (Media Access Control Security)is a security protocol that provides securecommunication over Ethernet links. It operates at the MAC layer (Layer 2) and offers the following key security services:
Integrity Check (B):Ensures that data has not been tampered with during transmission.
User Data Encryption (C):Protects data confidentiality by encrypting the payload.
Data Source Authenticity Verification (D):Confirms that the data originates from a legitimate source by using security associations.
Controllability Check (A)is not a service provided by MACsec. The term " controllability " typically relates to network management and configuration control rather than data security. MACsec primarily focuses on protecting data integrity, confidentiality, and authenticity, rather than controlling network elements or configurations.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei Ethernet Security Configuration Guide
IEEE 802.1AE (MACsec) Standard

NEW QUESTION # 321
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