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Huawei H12-891_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Campus Network Planning and Deployment23%- Campus Network Architecture Design
  • 1. CloudCampus solution architecture and features
    • 2. Typical campus network structure and design principles
      - Campus Network Service Deployment
      • 1. WLAN planning and deployment
        • 2. User access management and security
          • 3. Campus network management and operation
            Advanced Routing and Switching Technologies37%- Advanced Routing Protocols
            • 1. BGP route control, policy and deployment
              • 2. OSPF advanced features and optimization
                • 3. IS-IS protocol principles and deployment
                  - Advanced Switching Technologies
                  • 1. Ethernet protection and reliability technologies
                    • 2. VXLAN and EVPN principles and application
                      • 3. Multicast routing and deployment
                        - Network Quality and Optimization
                        • 1. QoS mechanism and deployment
                          • 2. Traffic engineering and MPLS technology
                            Bearer WAN Planning and Deployment15%- High-level Technology Deployment
                            • 1. SRv6 principles and deployment
                              • 2. Network slicing and service bearing
                                - Bearer Network Architecture
                                • 1. Typical bearer network structure and requirements
                                  • 2. CloudWAN solution and application scenarios
                                    WAN Interconnection Network Planning and Deployment8%- WAN Service Optimization
                                    • 1. WAN link reliability and load balancing
                                      • 2. WAN security and isolation design
                                        - WAN Interconnection Technologies
                                        • 1. SD-WAN architecture and Huawei solution
                                          • 2. Traditional WAN connection technologies
                                            Network Automation Technologies and Practice17%- Huawei Automation Solutions
                                            • 1. API-based network operation and maintenance
                                              • 2. eSight and iMaster NCE tools
                                                • 3. Configuration automation and deployment
                                                  - Automation Foundation
                                                  • 1. YANG model and data modeling
                                                    • 2. Network programming basis and protocols

                                                      >> H12-891_V1.0 Fragenkatalog <<

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                                                      Huawei HCIE-Datacom V1.0 H12-891_V1.0 Prüfungsfragen mit Lösungen (Q111-Q116):

                                                      111. Frage
                                                      A multi-protocol network, the topology is shown in the figure. Take a closer look at the topology, router R4 (in Areal) is introduced into the OSPF process via the routes learned by BGP. So what categories of LS4 will R3 advertise to zone 0?( Multiple choice questions).

                                                      Antwort: A,B,C


                                                      112. Frage
                                                      Refer to the figure.

                                                      Which of the following steps are mandatory to enable 802.1X authentication on GE0/0/2 and GE0/0/3 of SW3 and configure a RADIUS server to authenticate and deliver network access rights to users?

                                                      Antwort: A,B,C,D

                                                      Begründung:
                                                      Understanding 802.1X Authentication in Enterprise Networks
                                                      # What is 802.1X?
                                                      802.1X is a network access control (NAC) protocol that enforces authentication before allowing a device to connect to a LAN.
                                                      It usesEAP (Extensible Authentication Protocol)overRADIUSfor user verification.
                                                      Typically deployed incorporate and campus networksforsecure wired and wireless access.
                                                      # How Does 802.1X Work?
                                                      1##Client (Supplicant) # Requests network access.
                                                      2##Switch (Authenticator) # Forwards request to RADIUS server.
                                                      3##RADIUS Server # Verifies credentials & grants access.
                                                      Mandatory Steps to Enable 802.1X on SW3
                                                      #A. Configure an AAA Scheme
                                                      Defines authentication, authorization, and accounting (AAA) methods.
                                                      Links802.1X authentication to the RADIUS server.
                                                      #B. Configure an Authentication Profile
                                                      Specifies how authentication is handled on the switch.
                                                      Associates802.1X authentication with an AAA scheme.
                                                      #C. Configure an Authentication Domain
                                                      Groups authentication policies for different user types.
                                                      MapsAAA scheme to user login requests.
                                                      #D. Configure an 802.1X Access Profile
                                                      Applies 802.1X authentication to specific switch ports (GE0/0/2 & GE0/0/3).
                                                      Ensures thatonly authenticated users can pass traffic.
                                                      Why Are All Four Steps Necessary?
                                                      #Each step plays a critical role in enabling 802.1X authentication and linking it to the RADIUS server.
                                                      #Without any one of these configurations, the 802.1X authentication process would fail.
                                                      Real-World Application:
                                                      Enterprise Wired Security:Ensures thatonly authenticated devicesaccess corporate networks.
                                                      University Campuses & Public Wi-Fi:Prevents unauthorized access tosecure LAN environments.
                                                      #Reference:Huawei HCIE-Datacom Guide - 802.1X Authentication & RADIUS Server Configuration


                                                      113. Frage
                                                      BGP EVPN can be used as the VXLAN control plane protocol to completely prevent traffic flooding, such as broadcast ARP packets, on the VXLAN network.

                                                      Antwort: A

                                                      Begründung:
                                                      Understanding VXLAN and BGP EVPN Control Plane
                                                      VXLAN (Virtual eXtensible LAN) is an overlay network technology that enables Layer 2 (L2) extension over an IP-based network using MAC-in-UDP encapsulation.
                                                      # Traditional VXLAN Flooding Issue:
                                                      * Without BGP EVPN, VXLAN uses flood-and-learn behavior for MAC address learning.
                                                      * Broadcast, Unknown Unicast, and Multicast (BUM) traffic is flooded to all VTEPs, which is inefficient.
                                                      # How Does BGP EVPN Solve Flooding?
                                                      * BGP EVPN (Ethernet VPN) replaces the flood-and-learn model with a distributed control plane.
                                                      * MAC/IP bindings are advertised through BGP EVPN Type 2 routes, eliminating the need for flooding ARP requests.
                                                      * VXLAN routers learn MAC addresses proactively instead of relying on flooding.
                                                      Why is the Answer TRUE?
                                                      # BGP EVPN fully prevents ARP flooding by distributing MAC/IP bindings via control plane updates.# VTEPs only send traffic to known destinations, reducing network congestion.# BGP EVPN is the industry standard for large-scale data center and campus VXLAN deployments.
                                                      Real-World Application:
                                                      * Data Centers: Avoids unnecessary ARP request flooding in large cloud networks.
                                                      * Campus Networks: Reduces L2 broadcast storms, improving network efficiency.
                                                      * Service Provider Networks: Enables scalable multi-tenant VXLAN solutions.
                                                      # Reference: Huawei HCIE-Datacom Guide - VXLAN BGP EVPN Control Plane Architecture


                                                      114. Frage
                                                      MPLS supports Forwarding Equivalence Class (FEC). Which of the following cannot be used as a FEC allocation standard?

                                                      Antwort: D

                                                      Begründung:
                                                      FEC (Forwarding Equivalence Class) in MPLS is a group of packets that are forwarded in the same manner. MPLS can classify packets into FECs based on factors such as:
                                                      Destination IP address
                                                      Source address
                                                      CoS (Class of Service)
                                                      Application type
                                                      However, Fragment Offset, which is part of the IP header used for IP fragmentation, is not used in FEC classification. Fragment offset is more relevant to how IP packets are reconstructed and not suitable or used as a classification standard for forwarding decisions in MPLS.
                                                      Exact Extract - Huawei HCIE-Datacom V1.0 MPLS Chapter:
                                                      "FEC classification may be based on various parameters including destination address, source address, and even CoS values. However, fragment offset is not used as an FEC criterion, as MPLS forwarding occurs before IP reassembly." Reference:
                                                      Huawei HCIE-Datacom Study Guide - MPLS Fundamentals
                                                      Huawei Datacom Training Courseware - Chapter on MPLS FEC and Label Distribution


                                                      115. Frage
                                                      The following message about OSPFV3 is correct?

                                                      Antwort: A,B,D


                                                      116. Frage
                                                      ......

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