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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Center and Virtualization Technologies	- VXLAN and overlay networks 1. Data center network virtualization
Topic 2: Network Automation and Programmability	- SDN and automation 1. Network automation tools 2. NETCONF/YANG basics
Topic 3: Routing and Switching Technologies	- Switching technologies 1. VLAN and STP 2. Ethernet switching mechanisms - IP routing protocols 1. OSPF 2. IS-IS basics 3. BGP
Topic 4: IPv6 and Advanced IP Technologies	- IPv6 deployment 1. IPv6 addressing and transition
Topic 5: WAN and VPN Technologies	- MPLS fundamentals 1. VPN technologies 2. MPLS LDP and forwarding
Topic 6: Enterprise Network Architecture	- Network design principles 1. Hierarchical network architecture 2. Scalability and high availability design
Topic 7: Network Security and QoS	- Security mechanisms 1. Basic network security design 2. ACL and traffic control - QoS mechanisms 1. Traffic classification and shaping

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Huawei HCIE-Datacom V1.0 Sample Questions (Q89-Q94):

NEW QUESTION # 89
What is the router ID length supported by OSPFv3?

A. 64 bits
B. 100 bits
C. 32 bits
D. 128 bits

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:
OSPFv3, which supports IPv6, uses a router ID that is 32 bits in length, similar to OSPFv2. The router ID in OSPF is always a 32-bit number, typically represented in an IPv4 address format (dotted decimal). Although OSPFv3 is designed to support IPv6, itstill relies on a 32-bit router ID for identification, which must be unique within an OSPF domain. The router ID does not change even though the protocol itself supports IPv6 addresses (128 bits).
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei OSPFv3 Configuration and Implementation Guide

NEW QUESTION # 90
Regarding Policy Routing, the following description error is ?( Single choice questions).

A. Interface policy routing is only supported for application in the inbound direction of an interface.
B. If the message matches the permit table entry in the interface policy route , the message must be forwarded according to the next hop specified by the interface policy route
C. When configuring local policy routing, if two next hop and two outbound interfaces are set in the policy at the same time, packet forwarding only distributes the load between the two outbound interfaces.
D. Interface policy routing only takes effect for forwarded packets, but has no effect on packets sent locally.

Answer: B

NEW QUESTION # 91
The correct statement about the IGMP proxy is ? Multi-select

A. The downstream interface of the IGMP proxy device generates multicast relay table items
B. IGMP proxy is typically deployed on devices between hosts that are members of the access device The
C. IGMP proxy can detect the link status with the linkage through the information of the member host joining/leaving the multicast group, and realize the rapid switching of the primary and standby device links
D. IGMP proxy device cannot send query messages to downstream member hosts in place of the IGMP queryer to maintain group membership

Answer: A,B,C

NEW QUESTION # 92
The following description of the GVRP interface registration mode in Huawei switches is correct?

A. When the interface layer two operating mode must be hybird
B. When fixed registration mode is selected, the interface cannot propagate dynamic VLANs
C. When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator
D. GVRP when the register mode with forbidden is selected, there are four types of interface registration mode

Answer: B

NEW QUESTION # 93
What are the wrong statements about OSTPF's Router LSA and Network LSA?

A. A router running OSPF must produce a Router LSA
B. Network LSA carries both topology and routing information
C. A router running OSPF must produce a Network LSA
D. There must be both Router LSA and Network LSA in the OSPF network

Answer: C,D

NEW QUESTION # 94
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