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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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Huawei HCIE-Datacom V1.0 Sample Questions (Q19-Q24):

NEW QUESTION # 19
In Huawei ' s NAC solution, which of the following cannot be used for Portal authentication?

A. Passcode
B. User name and password
C. SMS verification code
D. User's MAC address

Answer: D

Explanation:
Huawei'sNetwork Access Control (NAC)Portal authentication supports various identity authentication methods for user login via a web page. These include:
Username and password- standard method.
Passcode- one-time password or PIN.
SMS verification code- users receive a dynamic code via SMS for identity verification.
However:
MAC addressauthentication is used inMAC-based authentication, not Portal. MAC authentication allows a device to be authenticated using its MAC address without user interaction (i.e., not via a Portal page).
Correct answer: D. User's MAC address
Reference:Huawei HCIE-Datacom V1.0 Study Guide -Chapter: NAC Authentication MethodsSection:
Portal, MAC, and 802.1X Authentication

NEW QUESTION # 20
During the configuration of L3VPNv4 over SRv6 BE, if an RR is deployed in the SR domain, which command must be run on the RR to ensure that the PEs at both ends can correctly learn VPNv4 routes?

Answer:

Explanation:
peer retain-route-target all
Explanation:
Understanding L3VPNv4 Over SRv6 BE
# What is L3VPNv4?
* L3VPNv4 (Layer 3 VPN over IPv4) allows MPLS-based VPN services over an SRv6 backbone.
* Uses MP-BGP (Multiprotocol BGP) to distribute VPN routes.
# Why is an RR (Route Reflector) Needed?
* An RR simplifies BGP route exchange between multiple PEs (Provider Edge routers).
* Without proper configuration, RRs may filter VPNv4 routes, preventing PEs from learning routes correctly.
Why is the Command peer retain-route-target all Needed?
# Ensures that the RR retains all VPNv4 routes.# Prevents the RR from filtering route targets (RTs), allowing full VPN reachability.# Without this command, the RR might not reflect all VPNv4 routes, causing connectivity issues.
Real-World Application:
* Enterprise MPLS VPNs: Ensures correct BGP route reflection in an SRv6-based L3VPN.
* Carrier Networks: Helps service providers maintain full BGP VPN route distribution.
# Reference: Huawei HCIE-Datacom Guide - BGP Route Reflectors in L3VPN over SRv6

NEW QUESTION # 21
As shown in the figure, all routers run OSPF, which is correct in the following statement:

A. R2 generates Router LSA only in Zone 0
B. R2 forwards the R1-generated Router LSA to R3
C. Both R2 and Zone 0 generate Router LSA
D. R2 Forwards the R3-generated Router LSA to R1

Answer: C

NEW QUESTION # 22
What can be determined from the following figure?
<R1> display bgp ipv6 routing-table
Total Number of Routes: 2
*>i Network : 3002::3
NextHop : 3000:FDEA::3
MED : 0
Path/Orgn : i
*>i Network : 3002::4
NextHop : 3000:FDEA::3
MED : 0
PrefixLen : 128
LocPrf : 100
PrefVal : 0
Path/Orgn : 65001 i

A. If no routing policy is configured for the AS Path attribute, 3002::4/128 does not originate from AS
65001.
B. R1 has routes 3002::3/128 and 3002::4/128.
C. If no routing policy is configured for the AS_Path attribute, 3002::4/128 originates from AS 65001.
D. R1 does not have routes 3002::3/128 and 3002::4/128.

Answer: B

Explanation:
The command output shows:
*>i before both networks, which means these routes are the preferred routes (*) and are learned via internal BGP (i).
Two networks are listed: 3002::3 and 3002::4, which means R1does havethese two routes in its BGP IPv6 routing table.
For 3002::4, the path origin shows 65001 i, which means this route originated from AS 65001 and was learned through IBGP.
The AS Path attribute is only shown for 3002::4, but both routes are clearly present.
Therefore, the correct conclusion is:
D: R1 has routes 3002::3/128 and 3002::4/128.

NEW QUESTION # 23
HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

A. ICMP and UDP
B. IP ?TCP
C. FTP
D. UDP
E. NFS

Answer: D

NEW QUESTION # 24
......

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