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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Routing and Switching Technologies	37%	- Network Quality and Optimization 1. Traffic engineering and MPLS technology 2. QoS mechanism and deployment - Advanced Switching Technologies 1. Multicast routing and deployment 2. Ethernet protection and reliability technologies 3. VXLAN and EVPN principles and application - Advanced Routing Protocols 1. OSPF advanced features and optimization 2. IS-IS protocol principles and deployment 3. BGP route control, policy and deployment
Topic 2: Campus Network Planning and Deployment	23%	- Campus Network Architecture Design 1. Typical campus network structure and design principles 2. CloudCampus solution architecture and features - Campus Network Service Deployment 1. User access management and security 2. Campus network management and operation 3. WLAN planning and deployment
Topic 3: 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
Topic 4: 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
Topic 5: 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 (Q306-Q311):

NEW QUESTION # 306
RD is used to distinguish the same IP address in different VPNs, how many bits does RD contain ? (Single choice)

A. 0
B. 1
C. 2
D. 3

Answer: A

NEW QUESTION # 307
Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. HTTP is the most widely used network transmission protocol on the Internet. By default, which TCP port number is used?

Answer:

Explanation:
80
Explanation:
Understanding Huawei OPS and HTTP Communication
#What is Huawei OPS?
HuaweiOpen Programmability System (OPS)enablesAPI-based network automationusing standardHTTP requests.
It supportsNETCONF, RESTCONF, and RESTful APIsfordevice management.
#Why TCP Port 80?
Port 80is thedefault port for HTTP traffic.
Used forweb-based device management, API calls, and telemetry data exchange.
IfHTTPS (secure version) is used, the default port is 443.
Why is the Answer 80?
#HTTP operates on TCP port 80 by default.
#Huawei OPS uses HTTP APIs to manage network devices, making port 80 the standard option.
Real-World Application:
Cloud-Native Network Automation:UsesHTTP-based APIs for SDN controllers and automation tools.
Network Device Management:Enablesremote configuration and monitoring over HTTP APIs.
#Reference:Huawei HCIE-Datacom Guide - Open Programmability System (OPS) & HTTP Communication

NEW QUESTION # 308
The BGP ORF function can be used to control the maximum number of routes that can be sent by a BGP peer. To achieve this, which of the following tools is used to send such a route list to BGP peers?

A. Route-policy
B. ACL
C. IP prefix-list
D. Filter-policy

Answer: C

Explanation:
Comprehensive and Detailed In-Depth
The Outbound Route Filtering (ORF) function in BGP allows a BGP speaker to inform its peer about the prefixes that it wants to receive, thereby reducing unnecessary route advertisements.
IP Prefix-List (D) is the correct answer because it is used to define the list of prefixes that are sent to the BGP peer during the ORF capability negotiation.
Filter-policy (A) and Route-policy (B) are used for controlling routing information locally or filtering incoming/outgoing routes but do not directly control the number of routes sent using ORF.
ACL (C) is primarily used for packet filtering and is not related to BGP route filtering.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei BGP Configuration and Maintenance Guide
RFC 5291: Outbound Route Filtering Capability for BGP-4

NEW QUESTION # 309
Which of the following statements about SR-MPLS characteristics are correct? (Select all that apply)

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

Answer: A,B,C

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 # 310
The following information about MPLS tags describes the error as ?( Single choice questions).

A. If the bottom of the label identifies S=0, it indicates that the label is the bottom label and is directly forwarded to the IP.
B. The MPLS tag is 4 bytes long and encapsulated between the link layer and the network layer.
C. By default, devices support php features, and the ERAS node that supports PHP assigns a tag value of 3 to the penultimate hop node
D. When the tag value is 0, the tag must be ejected and the message must be forwarded based on IPv4

Answer: A

NEW QUESTION # 311
......

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