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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
WAN Interconnection Network Planning and Deployment	8%	- WAN Interconnection Technologies 1. Traditional WAN connection technologies 2. SD-WAN architecture and Huawei solution - WAN Service Optimization 1. WAN link reliability and load balancing 2. WAN security and isolation design
Campus Network Planning and Deployment	23%	- Campus Network Architecture Design 1. CloudCampus solution architecture and features 2. Typical campus network structure and design principles - Campus Network Service Deployment 1. WLAN planning and deployment 2. User access management and security 3. Campus network management and operation
Advanced Routing and Switching Technologies	37%	- Advanced Switching Technologies 1. VXLAN and EVPN principles and application 2. Multicast routing and deployment 3. Ethernet protection and reliability technologies - Network Quality and Optimization 1. Traffic engineering and MPLS technology 2. QoS mechanism and deployment - Advanced Routing Protocols 1. BGP route control, policy and deployment 2. OSPF advanced features and optimization 3. IS-IS protocol principles and deployment
Network Automation Technologies and Practice	17%	- Automation Foundation 1. Network programming basis and protocols 2. YANG model and data modeling - Huawei Automation Solutions 1. eSight and iMaster NCE tools 2. API-based network operation and maintenance 3. Configuration automation and deployment
Bearer WAN Planning and Deployment	15%	- High-level Technology Deployment 1. SRv6 principles and deployment 2. Network slicing and service bearing - Bearer Network Architecture 1. CloudWAN solution and application scenarios 2. Typical bearer network structure and requirements

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Huawei HCIE-Datacom V1.0 Sample Questions (Q159-Q164):

NEW QUESTION # 159
Regarding the description of the permanent multicast address, the error is ?

A. All routers running the OSPF protocol listen to 224005
B. All routers running the PIM protocol listen on 22400100
C. All routers listen on 224002
D. All hosts and routers in the network segment listen on 224001

Answer: B

NEW QUESTION # 160
After a wireless user passes Portal authentication, which of the following parameters cannot be used for authorizing the user?

A. ACL
B. IP address
C. UCL
D. free-rule

Answer: B

Explanation:
Comprehensive and Detailed In-Depth
After Portal authentication on a wireless network, the following parameters can be used for authorization:
free-rule (A): Allows traffic even before authentication.
UCL (B): User Control List, specifying user permissions.
ACL (D): Access Control List, defining permitted or denied traffic.
The IP address (C), however, is not used as an authorization parameter directly. Instead, IP addresses are typically assigned after successful authentication, and the control policies are applied based on user profiles or access lists.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei WLAN Authentication Configuration Guide

NEW QUESTION # 161
Which of the following options is described correctly for the assertion mechanism?( Radio).

A. In the assertion mechanism, the winner is responsible for forwarding multicast data to the broadcast segment
B. Winner's election process does not make IP address size a condition of the election
C. In the assertion mechanism, the loser will shut down the interface with the broadcast network necklace
D. The assertion mechanism is used for the election of DR

Answer: A

NEW QUESTION # 162
Which of the following link types may appear in OSPF Router-LSAs?

A. Vlink
B. StubNet
C. TransNet
D. P-2-P

Answer: A,B,D

Explanation:
OSPF (Open Shortest Path First) Router-LSA (Type 1 LSA) describes all directly connected OSPF links of a router and their types. The following link types can appear in a Router-LSA:
* Point-to-Point (P-2-P) (B) - Represents a direct connection between two routers.
* Virtual Link (Vlink) (C) - Used to connect an area to the backbone (Area 0) when a direct connection is unavailable.
* Stub Network (StubNet) (D) - Represents a network with only one exit point (e.g., a loopback interface or passive interface).
Incorrect Option:
TransNet (A) - Incorrect!
* Transit networks appear in Network LSAs (Type 2), not Router LSAs.
Reference from Huawei HCIE-Datacom Documentation:
* Huawei OSPF Configuration Guide - Router-LSAs and Link Types
* HCIE-Datacom Training Material - OSPF LSAs and Topology Advertisement

NEW QUESTION # 163
Which of the following statements is correct about the differences between NSR and NSF?

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

Answer: B

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 # 164
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