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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. QoS mechanism and deployment 2. Traffic engineering and MPLS technology - Advanced Routing Protocols 1. BGP route control, policy and deployment 2. IS-IS protocol principles and deployment 3. OSPF advanced features and optimization - Advanced Switching Technologies 1. VXLAN and EVPN principles and application 2. Ethernet protection and reliability technologies 3. Multicast routing and deployment
Topic 2: 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 3: 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. Campus network management and operation 2. WLAN planning and deployment 3. User access management and security
Topic 4: Network Automation Technologies and Practice	17%	- Automation Foundation 1. YANG model and data modeling 2. Network programming basis and protocols - Huawei Automation Solutions 1. eSight and iMaster NCE tools 2. Configuration automation and deployment 3. API-based network operation and maintenance
Topic 5: 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. Traditional WAN connection technologies 2. SD-WAN architecture and Huawei solution

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Huawei HCIE-Datacom V1.0 Sample Questions (Q109-Q114):

NEW QUESTION # 109
The following figure shows some configurations of R1. Based on these configurations, which of the following statements about IS-IS on R1 are correct?
isis 1
is-level level-2
cost-style wide
network-entity 49.0022.ee8c.a0c2.baf1.00
isis 2 vpn-instance tt
is-level level-2
cost-style wide
network-entity 47.00ce.390d.efdc.b3e1.00
isis 3 vpn-instance rr
is-level level-2
cost-style wide
network-entity 47.cc0a.3efb.bbdd.aae1.00

A. Routing information of process 2 is isolated from that of process 3.
B. Process 1 contains the global routing information and routing information of VRFs tt and rr.
C. Routing information is shared between processes 2 and 3.
D. Process 1 contains only global routing information.

Answer: A,D

Explanation:
Let's break this down step-by-step based on Huawei IS-IS VPN and multi-process behavior.
🔹 Configuration Summary:
Process 1: IS-IS for the global routing table
Process 2: IS-IS for VPN instance tt
Process 3: IS-IS for VPN instance rr
✅ Option C: Correct
Process 1 contains only global routing information.
The configuration of isis 1 does not include any vpn-instance keyword, meaning it is bound to the global routing table.
It does not interact with VPN routing tables unless explicitly configured with import/export mechanisms or route leaking (which is not shown here).
Huawei Datacom Reference:
"When an IS-IS process is not associated with a VPN instance, it belongs to the global routing table and only maintains global routes." (Source: HCIE-Datacom Study Guide v3.0 - Chapter: IS-IS for IPv4 and IPv6, Section: Multi-Instance Routing)
✅ Option D: Correct
Routing information of process 2 is isolated from that of process 3.
isis 2 is bound to VPN instance tt
isis 3 is bound to VPN instance rr
Each IS-IS process in Huawei VRF context maintains independent LSDBs and routing tables, and by default, they do not share routing information unless route leaking or redistribution is configured (which is not shown in the config).
Huawei Datacom Reference:
"IS-IS processes bound to different VPN instances operate independently and do not share routing information." (Source: HCIE-Datacom Study Guide v3.0 - Chapter: MPLS L3VPN with IS-IS)

NEW QUESTION # 110
Flavors are additional behaviors defined to enhance theEnd series instructionsinSRv6. Which of the followingEnd instructionscan thePSP flavorbe attached to?

A. End.X
B. End.T
C. End.BM
D. End

Answer: A,B,D

Explanation:
Comprehensive and Detailed Explanation:
#SRv6 (Segment Routing over IPv6) Flavorsprovide additionalprocessing behaviorsfor SRv6End instructions.
#PSP (Penultimate Segment Popping) Flavor:
PSP enables the penultimate node to remove the SRH (Segment Routing Header)before forwarding the packet to the last segment.
This reduces the processing overheadon the final segment node.
#Correct End Instructions for PSP:
#(A) End.X# Cross-connect behavior between segments.
#(C) End.T# Transport encapsulation in SRv6.
#(D) End# Basic SRv6 endpoint behavior.
#(B) End.BM is incorrect# This is used forBinding Segment (BSID)behavior and does not support PSP.
#Reference:Huawei HCIE Datacom - SRv6 Flavors and End Instructions

NEW QUESTION # 111
Regarding the FTP protocol, which of the descriptions below is correct?

A. FTP always uses TCP port 20 to establish a data session, and ICP port 21 to establish control will always use
B. FTP TCP port 21 to establish a data session, TCP port 20 to establish a control session
C. In FTP Active mode, the server tells the client which port it expects to send data on by commanding "PORT"
D. FTP always uses a TCP session to transmit control information and data information
E. In FTP Passive mode, the client completes the initialization of the TCP session for control and data

Answer: E

NEW QUESTION # 112
On the campus network shown, IPv6 is deployed for service tests. Four routers are deployed on the network, and OSPFv3 is used for IPv6 network connectivity. An engineer checks the LSDB of R2 and obtains a Link- LSA. Which of the following statements about the LSA are correct?

A. This LSA indicates that R2 does not support external routes but can participate in IPv6 route calculation.
B. This LSA is generated by R2.
C. The link-local address of R2's GE0/0/0 is FE80::2E0:FCFF:FECD:4F79.
D. The IPv6 address prefix of R2's GE0/0/0 is 2001:DB8:2345:23::/64.

Answer: B,C,D

Explanation:
InOSPFv3,Link-LSA (Type 8)is generated by a routerfor each of its interfacesto advertise:
Therouter's link-local addresson that interface.
TheIPv6 prefixesassociated with the interface.
Flags and options, such as router priority or loopback indicators.
From the output:
Link-LSA (Interface GigabitEthernet0/0/0)
Originating Router: 10.1.2.2
Link-Local Address: FE80::2E0:FCFF:FECD:4F79
Prefix: 2001:DB8:2345:23::/64
A: The link-local address of R2's GE0/0/0 is FE80::2E0:FCFF:FECD:4F79# This matches the Link-Local Address field in the LSA.# B: The IPv6 address prefix of R2's GE0/0/0 is 2001:DB8:2345:23::/64# This matches the Prefix field in the LSA.# C: This LSA indicates that R2 does not support external routes but can participate in IPv6 route calculation##Incorrect.
TheLink-LSAdoesnot provide any indicationabout external route capabilities.
It simply advertisesinterface-specific IPv6 and link-local info.
Whether R2 supports external routes depends onType 5 (External) or Type 7 (NSSA) LSAs, not Link-LSAs.
D: This LSA is generated by R2# The Originating Router: 10.1.2.2 is R2's router ID, so this LSA is definitely generated by R2.# Correct Answers:A, B, D The Link-LSA in OSPFv3 contains:
The link-local address used by the originating router on the link.
A list of all IPv6 prefixes associated with the link.
Flags such as router priority and the Router-LSA options.
These LSAs are alwaysgenerated by the router itselfand arenot flooded beyond the link.

NEW QUESTION # 113
The Path Selection tool can define multiple entries, which of the following tools will automatically generate a rejection of any entries at the end of the slot

A. Route policy
B. Community -filter
C. AS-Path- filter
D. IP-prefix

Answer: A,B,C,D

NEW QUESTION # 114
......

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