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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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Huawei HCIE-Datacom V1.0 Sample Questions (Q179-Q184):

NEW QUESTION # 179
During the evolution from OSPFv2 to OSPFv3, LSA formats and functions remain unchanged, except that the network layer addresses in LSAs are changed from IPv4 to IPv6.

Answer: B

Explanation:
OSPFv3 (for IPv6) introduces significant changescompared toOSPFv2 (for IPv4).
While both versions share similarrouting mechanisms, there are keyLSA format and functional differencesbeyond just address changes.
Major Differences Between OSPFv2 and OSPFv3:
Address Independence (LSA Format Changes)
OSPFv3 LSAs do not contain IP addresses directly; they rely onLink-LSA and Intra-Area Prefix LSAto advertise addresses.
InOSPFv2, IP addresses were included in LSA headers.
New LSA Types in OSPFv3
LSA Type 8 (Link-LSA): Advertises a router's IPv6 address to neighbors.
LSA Type 9 (Intra-Area Prefix LSA): Replaces the address information in Router-LSAs and Network-LSAs.
Support for Multiple Address Families (AF)
OSPFv3 can supportboth IPv4 and IPv6in newer implementations (RFC 5838).
Authentication Mechanism Removed
OSPFv3 relies on IPsec for authentication, whereas OSPFv2 hadbuilt-in authentication mechanisms.
Incorrect Statement Explanation:
#The statement"LSA formats and functions remain unchanged"isfalsebecause:
LSA structures were modifiedin OSPFv3.
New LSA types were introducedto handle IPv6 addresses separately.
Reference from Huawei HCIE-Datacom Documentation:
Huawei OSPFv3 Configuration Guide - LSA Differences from OSPFv2
HCIE-Datacom Study Material - OSPFv3 Evolution & IPv6 Implementation


NEW QUESTION # 180
The telemetry network model is broadly and narrowly defined. Which of the following modules are involved in telemetry in a narrow sense (device-side telemetry)?

Answer: A,C,D

Explanation:
Comprehensive and Detailed In-Depth
Telemetry in a narrow sense refers specifically to the device-side telemetry process, which includes the following key modules:
Data generation (A): The device collects and generates telemetry data, such as performance metrics or operational statistics.
Data push (B): The device actively pushes the collected data to the configured destination (such as a collector or management system) using a data streaming protocol.
Data source (C): The entity on the device that generates or provides the monitored data.
Data subscription (D) is not part of the device-side telemetry; it is related to the management system side, where users subscribe to specific telemetry data streams.
Therefore, the correct answers are A, B, C.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei Telemetry Configuration Guide


NEW QUESTION # 181
Which of the following statements are correct about the authentication protocols used inPortal authentication?

Answer: B,D

Explanation:
Comprehensive and Detailed Explanation:
#Portal authenticationis aweb-based authentication mechanismused in campus networks tocontrol user access.
#Correct Statements:
#(A)ThePortal server exchanges authentication detailswith the access device, which forwards them to the authentication server.
#(D)When usingHTTP/HTTPS authentication, the client must send authentication credentials to theaccess device, which then forwards them to the authentication server.
#Incorrect Statements:
#(B)HTTP/HTTPS support ismandatoryfor web-based authentication.
#(C)If HTTP/HTTPS is used,Portal authentication may still be required.
#Reference:Huawei HCIE Datacom - Portal Authentication Mechanism


NEW QUESTION # 182
After the reset isis all command is run, the specified IS-IS process is reset, and all involved IS-IS neighbor relationships are re-established; however, IS-IS statistics are not cleared.

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
The reset isis all command resets the entire IS-IS process, including:# Neighbor adjacencies# LSDB (Link- State Database)# All IS-IS-related statistics Key Points:
* This command resets IS-IS completely, causing temporary route convergence delays.
* All IS-IS statistics are cleared because the process restarts from scratch.
Since the question states that IS-IS statistics are not cleared, which is incorrect, the correct answer is FALSE.
# Reference: Huawei HCIE Datacom - IS-IS Troubleshooting and Reset Commands


NEW QUESTION # 183
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 # 184
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