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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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                                                      Huawei HCIE-Datacom V1.0 Sample Questions (Q148-Q153):

                                                      NEW QUESTION # 148
                                                      Which of the followinguser logout modesare supported by802.1X authentication?

                                                      Answer: A,B,D

                                                      Explanation:
                                                      Comprehensive and Detailed Explanation:
                                                      #802.1X authenticationsupportsmultiple logout mechanismsbased on network conditions and security policies.
                                                      #Correct Logout Modes:
                                                      #(A) Authentication Server Logout# The RADIUS server canterminatea session.
                                                      #(B) Manual Logout# Users candisconnect manually.
                                                      #(C) Access Device Logout# The switch/WLAN controller canenforce logouts(e.g., if inactivity is detected).
                                                      #Why Not (D)?
                                                      #(D) Accounting Server Logout# Theaccounting server tracks session usagebutdoes not enforce logouts.
                                                      #Reference:Huawei HCIE Datacom - 802.1X Authentication & Session Termination


                                                      NEW QUESTION # 149
                                                      A network administrator runs the display telemetry subscription command on a device to check telemetry subscription information. The command output is as follows:
                                                      [~CE]display telemetry subscription
                                                      Sub-name : Sub1
                                                      Sensor group:
                                                      Sensor-name Sample-interval(ms) State
                                                      Sensor1 1000 RESOLVED
                                                      Destination group:
                                                      Dest-name Dest-IP Dest-port State Vpn-name Protocol
                                                      Dest1 192.168.56.1 20000 RESOLVED - GRPC
                                                      Sub-state : PASSIVE
                                                      Total subscription number is : 1
                                                      Which of the following statements is incorrect?

                                                      Answer: B

                                                      Explanation:
                                                      Comprehensive and Detailed Explanation:
                                                      # Correct Interpretations from the Output:# (A) The subscription name is "Sub1" (Confirmed from output).# (C) The subscription is static (PASSIVE state indicates this).# (D) The sample interval is
                                                      1000ms (1 second).
                                                      # (B) Incorrect:
                                                      * The IP address "192.168.56.1" belongs to the destination server, not the local device.
                                                      # Reference: Huawei HCIE Datacom - Telemetry Subscription and Monitoring


                                                      NEW QUESTION # 150
                                                      In DU label advertisement mode, if the liberal label retention mode is used, the device reserves labels received from all the LDP peers regardless of whether the LDP peer is the optimal next hop for reaching the destination network.

                                                      Answer: A

                                                      Explanation:
                                                      In MPLS LDP (Label Distribution Protocol), label retention modes control how labels are stored in the Label Forwarding Information Base (LFIB).
                                                      DU Label Advertisement Mode (Downstream Unsolicited):
                                                      * Labels are advertised to all LDP peers without a request.
                                                      * The receiving router decides which label to use for forwarding.
                                                      Liberal vs. Conservative Label Retention:
                                                      # Liberal Label Retention Mode (Correct Answer)
                                                      * All received labels from all LDP peers are stored.
                                                      * Even if a peer is not the optimal next hop, its label is retained.
                                                      * Allows faster convergence during failures.
                                                      # Conservative Label Retention Mode
                                                      * Only the label from the best next-hop peer is stored.
                                                      * Reduces memory usage but can slow down convergence in case of failure.
                                                      Reference from Huawei HCIE-Datacom Documentation:
                                                      * Huawei MPLS LDP Configuration Guide - Liberal vs. Conservative Label Retention
                                                      * HCIE-Datacom Training Material - Label Advertisement in MPLS Networks


                                                      NEW QUESTION # 151
                                                      The DHCP protocol assigns to clients-some TCPIP-related parameter information-in the process DHCP defines a variety of messages that are encapsulated at the transport layer :(sortic).

                                                      Answer: D


                                                      NEW QUESTION # 152
                                                      Drag the OSPFv3 LSAs to map them to their corresponding transmission ranges.

                                                      Answer:

                                                      Explanation:


                                                      NEW QUESTION # 153
                                                      ......

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