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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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Huawei HCIE-Datacom V1.0 Sample Questions (Q129-Q134):

NEW QUESTION # 129
As shown in the following figure, R1 and R2 establish a neighbor relationship for Level2, which is critical:
placed as follows, then the following about The route entry for R2 is correct

Answer: A,B,C


NEW QUESTION # 130
Because BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors, and routing policies between IBGP neighbors are not valid.

Answer: A


NEW QUESTION # 131
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, the TCP port number _____ is used. (Fill in Arabic numerals.)

Answer:

Explanation:
80HTTP
(Hypertext Transfer Protocol)is the foundation of web communication and is widely used in Huawei'sOPS (Open Programmability System)to manage devices via RESTful APIs.According to standardIANA port assignments, HTTP uses:TCP port 80 by defaultHTTPS (secured HTTP) usesTCP port
443Huawei OPS interacts with network devices usingHTTP (or HTTPS)protocols for script-driven automation, and unless secured HTTPS is specified,port 80is the standard.Correct answer: 80 Reference:
IANA Service Name and Port Number Registry: https://www.iana.org/assignments/service-names-port- numbers Huawei HCIE-Datacom V1.0 Study GuideChapter:Network Automation and ProgrammabilitySection:OPS Fundamentals and HTTP Communication


NEW QUESTION # 132
On an SR-MPLS network, manually configured prefix SIDs on different devices may conflict with each other.
Assume that there are four routes (prefix/mask SID) as follows.Which of the following routes will be selected according to the conflict handling principle?

Answer: B

Explanation:
Comprehensive and Detailed In-Depth Explanation:
In SR-MPLS, ifprefix SIDs conflict, the following principles are applied:
Prefix with a smaller value (numerically lower SID) wins.
If the prefix length is the same, the lower SID value is selected.
In this case:
Both1.1.1.1/32 2 (A)and1.1.1.1/32 1 (B)have the same prefix length.
SinceSID 1is numericallysmallerthanSID 2,B (1.1.1.1/32 1)is selected.
The other routes (C and D) have different prefixes and do not directly conflict.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei SR-MPLS Configuration and Maintenance Guide


NEW QUESTION # 133
To enhance reliability, you can deploy Huawei iMaster NCE-WAN controllers in active/standby mode.
Which of the following IP addresses must be configured to be the same for the active and standby controllers so that the controllers can be accessed properly? (Select All that Apply)

Answer: A,B,D

Explanation:
In Huawei iMaster NCE-WAN controller active/standby deployment, to ensure seamless switchover and uninterrupted management and control channel communication, the following IPs must be configured consistently:
A). Southbound public IP addresses - Required for southbound communication from remote WAN devices via public networks.
C). Southbound private IP addresses - Used for devices accessing controllers over private links. Must remain unchanged between controllers.
D). Northbound IP addresses - For API and external system integration, ensuring upper-layer platforms don ' t need reconfiguration during switchover.
Internal interconnection addresses (B) are used for internal HA communication between controllers and do not need to be identical, hence not selected.
Exact Extract - Huawei HCIE-Datacom iMaster NCE-WAN Deployment Guide:
"To maintain service continuity, configure consistent southbound and northbound IP addresses across active and standby controllers. Internal interconnection addresses differ between nodes." Reference:
Huawei iMaster NCE-WAN Product Documentation
HCIE-Datacom Study Guide - SD-WAN Controller High Availability


NEW QUESTION # 134
......

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