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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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Huawei HCIE-Datacom V1.0 Sample Questions (Q219-Q224):

NEW QUESTION # 219
What messages does an NMS (Network Management Station) running SNMPv1 send to the agent?

Answer: B


NEW QUESTION # 220
MPLS implements data forwarding based on two different planes. Which of the following statements regarding the forwarding mechanism are correct?

Answer: B

Explanation:
Understanding MPLS Forwarding Mechanism
MPLS (Multiprotocol Label Switching) is a high-performance forwarding mechanism that operates on two planes:
1## Control Plane:
* Establishes Label Switched Paths (LSPs) using protocols like LDP (Label Distribution Protocol), RSVP-TE (Resource Reservation Protocol - Traffic Engineering), or BGP-LU (BGP Label Unicast).
* Assigns labels to packets based on routing policies.
2## Data Plane (Forwarding Plane):
* Uses a Label Forwarding Information Base (LFIB) instead of traditional IP routing.
* Packets are forwarded based on labels, not IP addresses.
Analysis of the Answer Choices
# C. The system automatically assigns an ID to the upper-layer application that uses a tunnel. This ID is also called the tunnel ID.
* Correct: MPLS assigns a Tunnel ID to applications that utilize tunnels (e.g., VPNs, MPLS-TE, or L2
/L3 services).
* This ID helps differentiate between various tunnel applications, ensuring traffic follows the correct LSP.
# A. After an IP packet enters an MPLS domain, the MPLS device forwards the packet based on FIB table queries.
* Incorrect: MPLS routers do NOT use the FIB (Forwarding Information Base) for forwarding once labels are assigned.
* Instead, they use LFIB (Label Forwarding Information Base) to switch packets based on labels.
# B. If the tunnel ID is 0x0, the MPLS forwarding process starts.
* Incorrect: If the Tunnel ID is 0x0, MPLS does NOT start; it means no label is assigned, and traditional IP forwarding occurs.
# D. If the tunnel ID is not 0x0, the normal IP forwarding process starts.
* Incorrect: If the Tunnel ID is not 0x0, MPLS forwards traffic using label switching, not IP forwarding.


NEW QUESTION # 221
Which of the following statements is correct about 6PE and 6VPE?

Answer: B

Explanation:
6PE (IPv6 Provider Edge over MPLS) vs. 6VPE (IPv6 VPN Provider Edge over MPLS VPNs)
6PE (IPv6 over MPLS without VPNs):
* Uses global IPv6 routing over MPLS.
* No VPN instances (VRFs) are created on PEs.
* IPv6 addresses cannot be reused across different CEs because all traffic is routed using a single global table.
6VPE (IPv6 over MPLS with VPNs):
* Uses MPLS VPN (VRF instances) to provide IPv6 VPN services.
* VPN instances (VRFs) are created on PEs to separate customer networks.
* IPv6 addresses of CEs can be reused in different VPN instances because each VRF maintains separate routing tables.
Correct Answer Explanation:
# C. In 6VPE networking, IPv6 addresses of a CE can be reused.
* Since each VPN instance (VRF) maintains its own IPv6 routing table, IPv6 addresses of CEs can be reused across different VPNs.
Incorrect Answer Explanations:
# A. In 6PE networking, VPN instances need to be created on PEs.
* Wrong! 6PE does not use VPN instances (VRFs); it relies on a global IPv6 routing table.
# B. In 6PE networking, IPv6 addresses of a CE can be reused.
* Wrong! Since 6PE uses a single IPv6 global routing table, IPv6 addresses cannot be reused.
# D. In 6VPE networking, no VPN instance needs to be created on PEs.
* Wrong! 6VPE requires VPN instances (VRFs) on PEs to separate customer traffic.
Reference from Huawei HCIE-Datacom Documentation:
* Huawei MPLS VPN Configuration Guide - 6PE and 6VPE Deployment
* HCIE-Datacom Training Material - IPv6 MPLS Solutions


NEW QUESTION # 222
MQC, like PBR-can only be called under the device's Layer 3 interface.

Answer: B


NEW QUESTION # 223
The correct description of configuring BGP4+ is that

Answer: B,C


NEW QUESTION # 224
......

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