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Huawei H12-831_V1.0 Exam Syllabus Topics:

SectionObjectives
BGP and Internet Routing- BGP fundamentals
  • 1. Route policies and attributes
    • 2. BGP path selection
      - Advanced BGP features
      • 1. Confederation
        • 2. Route reflection
          Network Design and Troubleshooting- Enterprise network design
          • 1. Redundancy and reliability design
            • 2. Hierarchical network design
              - Troubleshooting methods
              • 1. Fault isolation techniques
                • 2. Performance optimization
                  MPLS and VPN Technologies- MPLS fundamentals
                  • 1. LDP basics
                    • 2. Label switching mechanism
                      - VPN technologies
                      • 1. L2VPN principles
                        • 2. L3VPN architecture
                          Advanced Routing Protocols- OSPF Advanced Concepts
                          • 1. Route calculation and optimization
                            • 2. LSA types and area types
                              - IS-IS Routing Protocol
                              • 1. IS-IS configuration and troubleshooting
                                • 2. IS-IS topology and levels
                                  IPv6 and Network Services- Network services
                                  • 1. Network security basics
                                    • 2. DHCP and NAT concepts
                                      - IPv6 routing technologies
                                      • 1. Transition mechanisms
                                        • 2. IPv6 addressing and routing

                                          >> H12-831_V1.0 Valid Dumps Sheet <<

                                          Lead2PassExam Huawei H12-831_V1.0 Exam Study Material: Your Ultimate Guide

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                                          Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions (Q169-Q174):

                                          NEW QUESTION # 169
                                          In the hub-spoke networking shown in the figure, to ensure correct route transmission, an administrator must manually configure the peer 10.1.2.1 _____ command in the IPv4 address family view of the BGP- VPN_out instance on the Hub-PE.

                                          (Enter the answer in lowercase letters only.)

                                          Answer:

                                          Explanation:
                                          next-hop-self
                                          Explanation:
                                          To determine the correct command, we need to analyze BGP behavior in a Hub-Spoke topology and how routes are advertised in MPLS VPN environments.
                                          1. Understanding the Hub-Spoke BGP/MPLS VPN Topology
                                          * The network consists of Hub-PE and Spoke-PE routers, which are MPLS VPN PEs.
                                          * Hub-PE is responsible for distributing routes between Spoke-PE1 and Spoke-PE2.
                                          * Spoke routers do not have direct IBGP peering with each other; instead, they rely on the Hub-PE to relay routes.
                                          * BGP next-hop handling is critical for proper route advertisement.
                                          2. Why is the "next-hop-self" Command Required?
                                          * By default, when BGP advertises a route, the next-hop remains unchanged (i.e., the original next- hop is retained).
                                          * In Hub-Spoke topology, Spoke routers would receive routes with a next-hop IP that belongs to another Spoke-PE, which is not reachable directly.
                                          * To solve this issue, we use the next-hop-self command on the Hub-PE, so that:
                                          * Hub-PE updates the next-hop to its own address before advertising routes to the Spoke-PEs.
                                          * This ensures that Spoke-PE routers use the Hub-PE as the next-hop, making routes reachable and preventing blackholing.
                                          3. Correct Command Usage
                                          The administrator must run the following command under the BGP IPv4 address family of the BGP- VPN_out instance on Hub-PE:
                                          shell
                                          CopyEdit
                                          peer 10.1.2.1 next-hop-self
                                          This ensures that the next-hop for advertised routes is changed to the Hub-PE's IP, allowing proper route transmission in the Hub-Spoke MPLS VPN environment.


                                          NEW QUESTION # 170
                                          In the OSFFV3 network shown in the figure, there are () Link-LSAs in R2's LSDB.

                                          Answer:

                                          Explanation:
                                          3


                                          NEW QUESTION # 171
                                          As shown in the figure, 0SPF is enabled on all interfaces of the router. The cost value of the link is marked in the figure, R2's LoogbackO is advertised by mouth in area 0, then in In area 1, both R2 and R3 transmit the routing information of 10.0.2.2/32 in the form of Typae3 LSA.

                                          Answer: B


                                          NEW QUESTION # 172
                                          In an HPLS network, when a transit device receives an MPLS message and prepares to perform label switching, it finds that the label value after switching is 0. Which of the following operations will it perform?

                                          Answer: B


                                          NEW QUESTION # 173
                                          The display current-configuration | include 10.0.2.* command can be run on a rotter to display all information about the current configuration that contains 10.0.2.

                                          Answer: A

                                          Explanation:
                                          Huawei VRP supports output filtering by appending a pipe and a filtering action to a display command. The include action retains output lines that match the specified regular expression. Therefore:
                                          display current-configuration | include 10.0.2.*
                                          displays the lines in the current configuration that match the 10.0.2.* expression. Any configuration line containing the text 10.0.2 satisfies the intended match, and the trailing .* allows zero or more following characters. This makes the statement true in the context of Huawei's command-output filtering behavior.
                                          Strictly speaking, the period is a regular-expression metacharacter representing any single character.
                                          Consequently, the expression may also match strings in which another character appears where a literal period was intended. If an administrator requires an exact literal IPv4-style match, the periods should be escaped according to the VRP regular-expression syntax. That precision does not alter the exam answer: the supplied command can display all matching current-configuration lines containing 10.0.2.
                                          Huawei's documentation confirms that | include regular-expression filters display-command output and shows display current-configuration | include ... as the standard usage pattern. Huawei CLI output filtering


                                          NEW QUESTION # 174
                                          ......

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