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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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H12-891_V1.0 Valid Test Preparation - H12-891_V1.0 Test Prep

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Huawei HCIE-Datacom V1.0 Sample Questions (Q119-Q124):

NEW QUESTION # 119
Which of the following statements about SR-MPLS Policy candidate paths are correct?

A. A candidate path can contain multiple segment lists, with each segment list carrying the weight attribute.
B. The valid candidate path with the highest preference functions as the primary path of the SR-MPLS Policy.
C. An SR-MPLS policy can contain multiple candidate paths with the preference attribute.
D. Load balancing can be implemented among candidate paths and among segment lists.

Answer: A,B,C,D

Explanation:
Comprehensive and Detailed Explanation:
# SR-MPLS Policy candidate paths are used for flexible path selection and load balancing in Segment Routing (SR-MPLS) networks.
# Correct Statements:# (A) Each candidate path can have multiple segment lists, each with its own weight for load balancing.# (B) Load balancing is supported both between candidate paths and within segment lists.# (C) An SR-MPLS Policy can contain multiple candidate paths, each with a preference value.# (D) The candidate path with the highest preference is selected as the primary path.
# Reference: Huawei HCIE Datacom - SR-MPLS Policy Path Selection

NEW QUESTION # 120
How long is an IPv6 prefix assigned to a host when an IPv6 address is configured for the host in SLAAC mode?

A. 128 bits
B. 32 bits
C. 64 bits
D. 96 bits

Answer: C

Explanation:
Stateless Address Autoconfiguration (SLAAC) is an IPv6 mechanism where a host automatically configures its own global unicast address without requiring a DHCPv6 server.
IPv6 Address Format in SLAAC:
First 64 bits → Network Prefix (received from the router's RA message).
Last 64 bits → Interface Identifier (generated using EUI-64 or a randomly assigned value).
Why is the Prefix Always 64 Bits?
SLAAC requires a /64 prefix because the host needs the lower 64 bits to generate a unique address.
IPv6 Neighbor Discovery (ND) and Address Autoconfiguration are designed for a /64 subnet mask.
Reference from Huawei HCIE-Datacom Documentation:
Huawei IPv6 Configuration Guide - SLAAC Addressing and Prefix Allocation HCIE-Datacom Training Material - IPv6 Stateless Address Autoconfiguration (SLAAC)

NEW QUESTION # 121
Why is BGP an enhanced distance vector routing protocol?

A. NEXT_HOP is a recognized mandatory attribute
B. According to the routing rules of BGP routing, the route with lower MED is preferred
C. BGP uses the ASPATH attribute to record all autonomous system numbers that a route passes through into an AS list, and based on that attribute, routes with shorter AS-PATH are preferred
D. BGP cannot accept routes that carry a local AS number in the AS_PATH

Answer: C

NEW QUESTION # 122
Which of the following tools cannot be referenced directly by the If-match clause in Route-policy?

A. Regular expression
B. Community-filt
C. AS-path-filter
D. IP-prefix

Answer: A

NEW QUESTION # 123
You have developed a third-party Portal authentication application and connected it to iMaster NCE-Campus to perform Portal authentication for Wi-Fi users. After connecting to Wi-Fi, a user will be redirected to the login page pushed by the authentication application when visiting any website for the first time.

A. TRUE
B. FALSE

Answer: A

Explanation:
Comprehensive and Detailed In-Depth
In the Huawei iMaster NCE-Campus solution, when using a third-party Portal authentication application, the following process occurs:
After the Wi-Fi user connects to the network, any attempt to access a website for the first time triggers HTTP redirection.
The user is redirected to the login page provided by the third-party authentication application.
This mechanism ensures that the user authenticates before accessing external resources.
The redirection behavior is consistent with captive portal functionality, which is standard for user authentication on Wi-Fi networks.
Therefore, the statement is TRUE.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei iMaster NCE-Campus Authentication Guide
Captive Portal Authentication Principles

NEW QUESTION # 124
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