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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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Huawei HCIE-Datacom V1.0 Sample Questions (Q152-Q157):

NEW QUESTION # 152
Which of the following community attributes ensure that BGP routes are transmitted only within an AS?

A. No_Export
B. No Export Subconfed
C. No_Advertise
D. Internet

Answer: A

Explanation:
In BGP, community attributes help control the advertisement scope of BGP routes. Here's what each option means:
No_Export: This well-known community attribute prevents BGP routes from being advertised to external BGP (EBGP) peers. Routes with this attribute can still be advertised to internal BGP (IBGP) peers within the same AS. This ensures that the route remains within the originating AS.
No_Advertise: This attribute means that the route should not be advertised toanyBGP peer, whether internal or external.
Internet: Indicates that the route can be advertised to all BGP peers, both internal and external, with no restrictions.
No_Export_Subconfed: Similar to No_Export, but it also restricts advertisement to peers within a BGP confederation. It ' s more specific and not generally used just to keep routes inside one AS.
Therefore, the correct answer isB. No_Export, as it is the attribute that ensures BGP routes remain within the AS by not being sent to EBGP peers.
Reference:Huawei HCIE-Datacom V1.0 Study Guide - Routing & Switching TechnologiesChapter: BGP Advanced FeaturesSection: Community Attributes

NEW QUESTION # 153
Which of the following statements about SR-MPLS characteristics are correct? (Select all that apply)

A. Only the controller can compute paths based on explicit paths.
B. Such networks can quickly interact with upper-layer applications through the source routing technology.
C. Efficient TI-LFA FRR protection is provided for fast path fault recovery.
D. SR-MPLS supports smooth network evolution by extending existing protocols, such as IGPs.

Answer: B,C,D

Explanation:
Let's break it down:
A . ❌ Incorrect - Path computation can be done by both controller and ingress routers, not just the controller.
B . ✅ SR-MPLS extends IGP protocols (e.g., OSPF/IS-IS) for segment distribution, allowing smooth evolution.
C . ✅ Supports TI-LFA (Topology Independent Loop-Free Alternate) for fast failure recovery.
D . ✅ Through source routing, SR-MPLS integrates easily with applications for programmable path control.
Exact Extract - HCIE-Datacom Segment Routing Chapter:
"SR-MPLS supports distributed and centralized path computation, uses IGP extensions for deployment, and supports TI-LFA for FRR. It allows interaction with applications through programmable routing." Reference:
Huawei Segment Routing White Paper
HCIE-Datacom Study Guide - SR-MPLS Technology

NEW QUESTION # 154
A client sends an HTTP request to a server, and the server sends back an HTTP response. Which of the following parameters is not carried in the HTTP response?

A. Reason phrase
B. Status code
C. Protocol version
D. URI

Answer: D

Explanation:
Comprehensive and Detailed In-Depth
An HTTP response from the server to the client typically includes the following components:
Protocol version (C): Specifies the HTTP version used (e.g., HTTP/1.1).
Status code (B): Indicates the response result (e.g., 200 for OK, 404 for Not Found).
Reason phrase (A): A textual description associated with the status code (e.g., "OK", "Not Found").
Headers and Body: Contain additional information and the actual response content.
URI (D): The Uniform Resource Identifier is part of the HTTP request and not the HTTP response. Therefore, D is the correct answer.
Reference:
Huawei HCIE Datacom Official Certification Guide
RFC 7231: Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

NEW QUESTION # 155
In an MPLS BGPVPN environment, if tags are distributed only through BGP and LDP, the MPLS tags of the message can be up to two layers of tags

A. True
B. False

Answer: A

NEW QUESTION # 156
An HTTP request line consists of three fields. Select the fields to form a complete HTTP request message.

Answer:

Explanation:

NEW QUESTION # 157
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