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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Bearer WAN Planning and Deployment	15%	- Bearer Network Architecture 1. Typical bearer network structure and requirements 2. CloudWAN solution and application scenarios - High-level Technology Deployment 1. SRv6 principles and deployment 2. Network slicing and service bearing
Topic 2: Campus Network Planning and Deployment	23%	- Campus Network Service Deployment 1. Campus network management and operation 2. WLAN planning and deployment 3. User access management and security - Campus Network Architecture Design 1. CloudCampus solution architecture and features 2. Typical campus network structure and design principles
Topic 3: Advanced Routing and Switching Technologies	37%	- Network Quality and Optimization 1. QoS mechanism and deployment 2. Traffic engineering and MPLS technology - Advanced Switching Technologies 1. Ethernet protection and reliability technologies 2. VXLAN and EVPN principles and application 3. Multicast routing and deployment - Advanced Routing Protocols 1. IS-IS protocol principles and deployment 2. OSPF advanced features and optimization 3. BGP route control, policy and deployment
Topic 4: WAN Interconnection Network Planning and Deployment	8%	- WAN Service Optimization 1. WAN link reliability and load balancing 2. WAN security and isolation design - WAN Interconnection Technologies 1. SD-WAN architecture and Huawei solution 2. Traditional WAN connection technologies
Topic 5: Network Automation Technologies and Practice	17%	- Huawei Automation Solutions 1. API-based network operation and maintenance 2. eSight and iMaster NCE tools 3. Configuration automation and deployment - Automation Foundation 1. YANG model and data modeling 2. Network programming basis and protocols

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Huawei HCIE-Datacom V1.0 Sample Questions (Q182-Q187):

NEW QUESTION # 182
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about the functions of BGP EVPN Type 3 routes is incorrect?

A. If the VTEP IP address carried in the received Type 3 route is reachable at Layer 3, a VXLAN tunnel to the peer end is established.
B. If the VTEP IP address of a Type 3 route is reachable at Layer 3 and the peer VNI is the same as the local VNI, an ingress replication list is created for forwarding BUM packets.
C. Type 3 routes carry L3VNIs.
D. Type 3 routes carry L2VNIs and VTEP IP addresses.

Answer: C

Explanation:
Comprehensive and Detailed Explanation:
BGP EVPN Type 3 routes are used for VXLAN ingress replication and BUM (Broadcast, Unknown unicast, and Multicast) traffic forwarding.
# Type 3 routes contain L2VNIs, not L3VNIs # (C is incorrect)
Key Functions of Type 3 Routes:
* Distribute VTEP IP addresses to establish VXLAN tunnels.
* Include L2VNIs for mapping Layer 2 broadcast domains.
* Used in Ingress Replication for BUM traffic.
Since Type 3 routes do not carry L3VNIs, the correct answer is C.
# Reference: Huawei HCIE Datacom - BGP EVPN Type 3 Routes

NEW QUESTION # 183
The switch uses IPSG technology to verify the source address of the IP packet, and the verification matrix used by the IPSG is obtained through the ARP resolution process in the listening network

A. False
B. True

Answer: A

NEW QUESTION # 184
gRPC (Google Remote Procedure Call) is a language-neutral, platform-neutral, and open-source remote RPC system that supports unary RPCs and streaming RPCs.
Which of the following service methods are NOT supported by gRPC?

A. rpc Subscribe(SubsArgs) stream returns(SubsReply) {};
B. rpc Cancel(CancelArgs) returns(CancelReply) {};
C. rpc stream LotsOfGreetings(HelloRequest) returns (HelloResponse) {};
D. rpc dataPublish(stream serviceArgs) returns(stream serviceArgs) {};

Answer: C,D

Explanation:
Comprehensive and Detailed
✔ gRPC supports four types of RPCs:
Unary RPC → Client sends one request, server responds once.
Server streaming RPC → Server sends multiple responses.
Client streaming RPC → Client sends multiple requests.
Bidirectional streaming RPC → Both sides exchange multiple messages.
✔ Why B and C Are Incorrect:
❌ (B) Incorrect → The method rpc dataPublish(stream serviceArgs) returns(stream serviceArgs) {} violates gRPC syntax.
❌ (C) Incorrect → rpc stream LotsOfGreetings(HelloRequest) returns (HelloResponse) {} contains incorrect stream positioning.
📖 Reference: Huawei HCIE Datacom - gRPC API and Streaming Mechanisms

NEW QUESTION # 185
iMaster NCE-CampusInsightuses SNMP technology to collect metrics and logs of network devices and detects network exceptions based on real service traffic.

A. TRUE
B. FALSE

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
iMaster NCE-CampusInsightis Huawei'sintelligent network analysis platformthat:
#Collectsreal-time telemetry datausingSNMP, NetStream, and Telemetry.
#Analyzes traffic patternsto detect network anomalies.
#UsesAI-driven analyticsto optimize network performance.
Thus, the statement isTRUE.
#Reference:Huawei HCIE Datacom - iMaster NCE-CampusInsight Features

NEW QUESTION # 186
In order to study the working mechanism of the OSPFv3 protocol, a project to build a network topology is as follows, the configuration of R1 and R2 is as follows, please ask the LSA switched between R1 and R2 What are the types?

A. Router-LSA
B. network-LSA
C. Link-LSA
D. Inter-area-prefix-LSA

Answer: A,B,C

NEW QUESTION # 187
......

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