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Huawei H12-891_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Bearer WAN Planning and Deployment15%- Traffic Engineering
  • 1. SR-TE
  • 2. Flex-Algo
  • 3. RSVP-TE
- SR (Segment Routing)
  • 1. SRv6
  • 2. SR-MPLS
- VPN Services
  • 1. L3VPN
  • 2. EVPN
Network Automation17%- iMaster NCE
  • 1. Intent-Driven Networking
- Automation Technologies
  • 1. RESTful API
  • 2. Ansible
  • 3. Python Scripting
  • 4. NETCONF/YANG
- NCE (Network Cloud Engine)
  • 1. Architecture
  • 2. Deployment
Advanced Routing and Switching Technology37%- Route Control
  • 1. ACL
  • 2. IP Prefix List
  • 3. Route-policy
  • 4. Route Filtering
- IS-IS
  • 1. Network Types
  • 2. Addressing
  • 3. Configurations and Troubleshooting
  • 4. Route Leaking
  • 5. Basic Concepts
- Ethernet Switching
  • 1. VXLAN
  • 2. Stack & CSS
  • 3. STP/RSTP/MSTP
  • 4. VLAN
- BGP
  • 1. Route Aggregation
  • 2. Configurations and Troubleshooting
  • 3. Basic Concepts
  • 4. Routing Policies
  • 5. Path Selection
- MPLS
  • 1. Configurations
  • 2. MPLS TE
  • 3. Basic Concepts
  • 4. MPLS VPN
  • 5. LDP
- OSPF
  • 1. LSA Types
  • 2. Configurations and Troubleshooting
  • 3. Basic Concepts
  • 4. Area Types
  • 5. Route Calculation
Campus Network Planning and Deployment23%- Underlay Network
  • 1. Physical Layer Design
  • 2. IP Address Planning
- Network Services
  • 1. WLAN
  • 2. QoS
  • 3. Network Security
- Campus Network Architecture
  • 1. Hierarchical Design
  • 2. Spine-Leaf Architecture
- Overlay Network (VXLAN)
  • 1. BGP EVPN
  • 2. VXLAN Gateway
WAN Interconnection Network Planning and Deployment8%- SD-WAN
  • 1. Architecture
  • 2. Orchestrator
- Inter-AS VPN
  • 1. Option A
  • 2. Option C
  • 3. Option B
- MPLS VPN
  • 1. Full-Mesh
  • 2. Hub-Spoke

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Huawei HCIE-Datacom V1.0 Sample Questions (Q302-Q307):

NEW QUESTION # 302
Which of the following user logout modes are supported by 802.1X authentication?

Answer: A,C,D

Explanation:
Comprehensive and Detailed
✔ 802.1X authentication supports multiple logout mechanisms based on network conditions and security policies.
✔ Correct Logout Modes:
✅ (A) Authentication Server Logout → The RADIUS server can terminate a session.
✅ (B) Manual Logout → Users can disconnect manually.
✅ (C) Access Device Logout → The switch/WLAN controller can enforce logouts (e.g., if inactivity is detected).
✔ Why Not (D)?
❌ (D) Accounting Server Logout → The accounting server tracks session usage but does not enforce logouts.
📖 Reference: Huawei HCIE Datacom - 802.1X Authentication & Session Termination


NEW QUESTION # 303
Regarding the tag space for MPLS, the description is incorrect

Answer: D


NEW QUESTION # 304
In a scenario where SR Policies are dynamically established through the controller, which of the following statements about the SR Policy solution architecture is incorrect?

Answer: C

Explanation:
Comprehensive and Detailed Explanation:
# SR Policies are dynamically computed and delivered by the SDN controller in an SR-MPLS or SRv6 network.
# Correct Statements:# (A) NETCONF is used for delivering configurations like routing policies and service interfaces.# (B) BGP-LS (Link-State) is used to collect topology and compute SR Policies.# (D) BGP IPv6 SR Policy distributes SR policy attributes like color, headend, and endpoints.
# Why Is (C) Incorrect?# (C) The controller does not use telemetry to deliver SID entries-telemetry is used for real-time monitoring, not path computation.
# Reference: Huawei HCIE Datacom - SR Policy and Controller-Based Path Computation


NEW QUESTION # 305
In order for routers at both ends of the IPv6 over lPv4 manual tunnel to exchange routing information, OSPV3 can be enabled on the tunnel, osPFv3 will be able to form a normal neighbor relationship, and the tunnel interface will be treated as a P2P link interface.

Answer: A


NEW QUESTION # 306
SR-MPLS is enabled on all routers. The label information encapsulated by R1 into a data packet is shown in the figure.

Which of the following is the forwarding path of the data packet?

Answer: B

Explanation:
Comprehensive and Detailed In-Depth
1. Understanding SR-MPLS (Segment Routing with MPLS):
Segment Routing (SR) leverages MPLS labels to define paths through the network.
The labels represent segments (nodes or specific paths) rather than traditional LDP or RSVP-TE labels.
The label stack determines the forwarding path through the network.
Top Label: Determines the next hop.
Next Label: After label pop, it indicates the subsequent hop.
2. Analyzing the Given Label Stack:
The label stack encapsulated by R1 is as follows:
Layer2: 2046
2013
2032
2024
2046
Layer3
The top label (2046) indicates that the next-hop router is R4.
After R4 pops the top label, the next label (2046) directs the packet to R6.
3. Forwarding Path Analysis:
Step 1: R1 sends the packet to R2 based on internal routing.
Step 2: R2 forwards the packet directly to R4 as dictated by the top label (2046).
Step 3: R4 pops the top label (2046) and checks the next label (again 2046), directing the packet to R6.
Step 4: R6 receives the packet as the final destination.
4. Why Option B is Correct:
The path R1-R2-R4-R6 matches the label stack processing in SR-MPLS.
The labels indicate the shortest path chosen by SR policies, which is R1 → R2 → R4 → R6.
The SR-MPLS label stack efficiently guides the packet through the optimal path without complex signaling.
Why Other Options Are Incorrect:
Option A (R1-R2-R3-R5-R6):
This path does not match the label sequence as the labels clearly indicate a direct path via R4, not through R3 and R5.
Option C (R1-R3-R2-R4-R6):
This path is longer and unnecessary, as the label stack indicates a more direct path via R2 and R4.
Reference:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: SR-MPLS Configuration Guide
RFC 8660 - Segment Routing with MPLS Data Plane
HCIE-Datacom Knowledge Base: Segment Routing and MPLS


NEW QUESTION # 307
......

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