PASS GUARANTEED 2025 EFFICIENT H12-891_V1.0: LATEST HCIE-DATACOM V1.0 EXAM PREPARATION

Pass Guaranteed 2025 Efficient H12-891_V1.0: Latest HCIE-Datacom V1.0 Exam Preparation

Pass Guaranteed 2025 Efficient H12-891_V1.0: Latest HCIE-Datacom V1.0 Exam Preparation

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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Exam is a certification that focuses on developing skills in the field of data communication. HCIE-Datacom V1.0 certification is designed to provide professionals with the necessary knowledge and expertise to design, operate, and troubleshoot complex data communication networks. H12-891_V1.0 Exam is intended for individuals who have experience in the field of data communication and want to advance their skills and knowledge.

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HCIE-Datacom V1.0 pass guide: latest H12-891_V1.0 exam prep collection

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Huawei HCIE-Datacom V1.0 Sample Questions (Q159-Q164):

NEW QUESTION # 159
In an MPLSVPN network, when a packet enters the Internet and is forwarded, it is encapsulated with two layers of MPLS tags, and the processing of the packet in the following options is described correctly?

  • A. The Egress PE device correctly sends packets to the appropriate VPN
  • B. The penultimate hop device receives packets with an outer label of 3
  • C. The Egress PE appliance receives an UNlabeled IP packet
  • D. based on the inner tag The packet pops up the outer label on the penultimate hop device and forwards it to the Egress PE device

Answer: A,B,D


NEW QUESTION # 160
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 device cannot send query messages to downstream member hosts in place of the IGMP queryer to maintain group membership
  • C. IGMP proxy is typically deployed on devices between hosts that are members of the access device The
  • D. 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

Answer: A,C,D


NEW QUESTION # 161
The Layer 3 logical interface on XLAN L3 Gateway that enables communication between different VXLAN virtual networks is ?

  • A. VBDIF interface
  • B. Layer 2 sub-interface
  • C. VLANIF interface
  • D. NVE interface

Answer: A


NEW QUESTION # 162
The following figure shows the inter-AS MPLS L3VPN Option C (Solution 2). ASBR-PE2 is connected to CE3 and runs eBGP.

To enable all CEs to communicate with each other, which of the following address families must peer relationships be enabled in the BGP process of ASBR-PE2?

  • A. VPN instance unicast address family
  • B. VPNv4 address family
  • C. BGP-LS address family
  • D. Unicast BGP address family

Answer: B,D

Explanation:
Understanding Inter-AS MPLS L3VPN Option C
# MPLS L3VPN provides Layer 3 VPN services over an MPLS backbone by using BGP to exchange VPN routes.# Inter-AS MPLS L3VPN Option C (copyright-to-copyright Model) works as follows:
* ASBRs (Autonomous System Boundary Routers) exchange VPNv4 routes using MP-BGP.
* ASBRs do NOT store VPN routing tables. Instead, they advertise labeled IPv4 routes to enable inter-AS forwarding.
How ASBR-PE2 Enables Inter-AS Communication?
# VPNv4 Address Family (Answer A - Required)
* Used to exchange MPLS VPN routes between PE routers.
* MP-BGP (Multiprotocol BGP) exchanges VPNv4 prefixes between ASBR-PE1 and ASBR-PE2.
# Unicast BGP Address Family (Answer D - Required)
* Required to exchange IPv4 labeled routes between ASBRs.
* Ensures MPLS label forwarding between AS100 and AS200.
# BGP-LS Address Family (Answer B - Not Required)
* BGP-LS (BGP Link-State) is used for SDN controllers to learn topology information.
* It is not required for Inter-AS MPLS L3VPN.
# VPN Instance Unicast Address Family (Answer C - Not Required)
* This is used for PE-CE communication but is not required between ASBRs.
Why is the Answer A, D?
# VPNv4 routes enable inter-AS VPN communication.# IPv4 unicast routes are required for ASBR-PE2 to forward packets across AS boundaries.
Real-World Application:
* Service Provider Networks: Used in copyright-to-copyright MPLS VPN deployments.
* Enterprise WAN Interconnection: Enables multi-AS MPLS VPN connectivity for large enterprises.
# Reference: Huawei HCIE-Datacom Guide - Inter-AS MPLS L3VPN Option C (copyright-to-copyright Model)


NEW QUESTION # 163
In an MPLS BGPVPN environment, if tags are distributed only through BGP and LDP, the MPLS tags of the message can be up to two layers of tags

  • A. False
  • B. True

Answer: B


NEW QUESTION # 164
......

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