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The Huawei H12-891_V1.0 exam consists of multiple-choice questions that cover a wide range of topics related to data communication technologies, including network architecture and design, network protocols, network security, network management, and more. H12-891_V1.0 Exam is designed to test the candidate's ability to solve complex problems related to data communication technologies and to demonstrate their ability to design and implement solutions that meet the needs of their clients.
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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) certification exam is a globally recognized certification program that validates the skills and knowledge required to design, implement, and troubleshoot complex data communication networks. HCIE-Datacom V1.0 certification exam covers a wide range of topics related to data communication, including network architecture, protocols, security, and virtualization. HCIE-Datacom V1.0 certification exam is an essential credential for professionals who want to advance in their careers in the field of data communication.
NEW QUESTION # 278
In the SD-WAN Solution, which routing protocols can be used by LAN-side devices to connect to a Layer 3 network?
Answer: A,B,C,D
Explanation:
In the Huawei SD-WAN solution, LAN-side devices (such as CPEs and aggregation routers) use various routing protocols to connect to Layer 3 networks and exchange routes dynamically. The supported protocols include:
✅ A. IS-IS (Intermediate System to Intermediate System)
A link-state protocol often used in large enterprise networks for fast convergence and scalability.
✅ B. OSPF (Open Shortest Path First)
A widely used dynamic routing protocol for intra-domain (LAN) connectivity.
Commonly used in enterprise networks to connect SD-WAN edge routers to LAN networks.
✅ C. BGP (Border Gateway Protocol)
BGP is primarily used for WAN and internet connectivity, but it can also be used inside large enterprise networks for LAN-side routing.
BGP enables inter-domain routing and policy-based route control.
✅ D. RIP (Routing Information Protocol)
A legacy distance-vector protocol still supported in some networks for basic LAN routing.
Less preferred due to slow convergence and hop-count limitations.
Reference from Huawei HCIE-Datacom Documentation:
Huawei SD-WAN Deployment Guide - LAN-Side Routing Protocols
HCIE-Datacom Training Material - Routing Configuration in SD-WAN
NEW QUESTION # 279
As shown in the figure, three switches SI, SN2, and SN3, where SN1 is the root bridge between S1 and SN2 Now that link support SN2 cannot receive the configuration BPDU sent by the root car, the administrator needs to configure which spanning tree protection mechanism to prevent the problem of link congestion?
Answer: B
NEW QUESTION # 280
In thesmall and midsize campus network designbased on theHuawei CloudCampus Solution, when over100 branchesneed to communicate with each other, which of the following interconnection networking models is recommended?
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
#Hub-Spoke networkingis the mostefficient and scalablemodel for interconnecting100+ branchesin asmall and midsize campus network.
#Why Hub-Spoke?
Centralized Control:Ahub routermanages communication betweenspoke routers(branch sites).
Reduced Complexity:Unlikefull-mesh, which requiresN(N-1)/2* connections,hub-spoke minimizes link costs.
Easier Management:Policy enforcement and security are centralized at thehub site.
#Why Not Other Options?
#A (Direct Networking)# Suitable forsmall networks, but inefficient for100+ branches.
#B (Full-Mesh Networking)# Highcost and complexity, requiringtoo many links.
#D (Partial-Mesh Networking)# More scalable thanfull-mesh, buthub-spoke is more optimizedfor large branch networks.
#Reference:Huawei HCIE Datacom - WAN Interconnection Models
NEW QUESTION # 281
When the load is an ICMPv6 message, what is the numeric value of the Next Header field in the IPv6 header if the presence of an extended header is not taken into account?
Answer: A,B,C
NEW QUESTION # 282
Which of the following roles is NOT a core role in Huawei's Free Mobility solution?
Answer: C
Explanation:
Understanding Huawei's Free Mobility Solution
Huawei's Free Mobility solution is designed to ensure that users can seamlessly access the network regardless of their physical location while maintaining consistent policies.
# Key Components in Free Mobility Solution:1## iMaster NCE-Campus (Answer A - Core Role)
* Manages network policies & user access.
* Implements centralized policy control & orchestration.
2## Policy Enforcement Device (Answer B - Core Role)
* Ensures that user policies (such as QoS, security, VLANs) are applied dynamically.
* Typically a switch or gateway enforcing access control.
3## Policy Control Device (Answer D - Core Role)
* Stores and dynamically assigns policies based on user role & device type.
* Works closely with iMaster NCE-Campus.
# Why is C (Authentication Device) NOT a Core Role?# Authentication devices (such as a RADIUS or AAA server) are not a core component of Huawei's Free Mobility solution.
* They are part of the broader network security framework but not mandatory for Free Mobility.
Real-World Application:
* Used in enterprise & campus networks where employees, guests, and IoT devices need seamless access while maintaining security policies.
# Reference: Huawei HCIE-Datacom Guide - Free Mobility Architecture & Policy Management
NEW QUESTION # 283
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