H12-891_V1.0考題套裝 -最新H12-891_V1.0考題

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Huawei H12-891_V1.0 Exam Syllabus Topics:

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

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                                                      最實用的H12-891_V1.0認證考試資料

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                                                      最新的 Huawei Certified ICT Expert H12-891_V1.0 免費考試真題 (Q193-Q198):

                                                      問題 #193
                                                      During the evolution from OSPFv2 to OSPFv3, LSA formats and functions remain unchanged, except that the network layer addresses in LSAs are changed from IPv4 to IPv6.

                                                      答案：B

                                                      解題說明：
                                                      OSPFv3 (for IPv6) introduces significant changescompared toOSPFv2 (for IPv4).
                                                      While both versions share similarrouting mechanisms, there are keyLSA format and functional differencesbeyond just address changes.
                                                      Major Differences Between OSPFv2 and OSPFv3:
                                                      Address Independence (LSA Format Changes)
                                                      OSPFv3 LSAs do not contain IP addresses directly; they rely onLink-LSA and Intra-Area Prefix LSAto advertise addresses.
                                                      InOSPFv2, IP addresses were included in LSA headers.
                                                      New LSA Types in OSPFv3
                                                      LSA Type 8 (Link-LSA): Advertises a router's IPv6 address to neighbors.
                                                      LSA Type 9 (Intra-Area Prefix LSA): Replaces the address information in Router-LSAs and Network-LSAs.
                                                      Support for Multiple Address Families (AF)
                                                      OSPFv3 can supportboth IPv4 and IPv6in newer implementations (RFC 5838).
                                                      Authentication Mechanism Removed
                                                      OSPFv3 relies on IPsec for authentication, whereas OSPFv2 hadbuilt-in authentication mechanisms.
                                                      Incorrect Statement Explanation:
                                                      #The statement"LSA formats and functions remain unchanged"isfalsebecause:
                                                      LSA structures were modifiedin OSPFv3.
                                                      New LSA types were introducedto handle IPv6 addresses separately.
                                                      Reference from Huawei HCIE-Datacom Documentation:
                                                      Huawei OSPFv3 Configuration Guide - LSA Differences from OSPFv2
                                                      HCIE-Datacom Study Material - OSPFv3 Evolution & IPv6 Implementation


                                                      問題 #194
                                                      The following information is displayed during OSPF troubleshooting. Based on this information, which of the following is the cause of the failure in establishing an OSPF adjacency relationship?
                                                      < Huawei > display ospf error interface GigabitEthernet 0/0/0
                                                      OSPF Process 1 with Router ID 10.0.12.2
                                                      OSPF error statistics
                                                      Interface: GigabitEthernet0/0/0 (10.0.12.2)
                                                      General packet errors:
                                                      0 : Bad version 0 : Bad checksum
                                                      0 : Bad area id 0 : Bad authentication type
                                                      0 : Bad authentication key 0 : Unknown neighbor
                                                      0 : Bad net segment 0 : Extern option mismatch
                                                      0 : Router id confusion
                                                      HELLO packet errors:
                                                      2 : Netmask mismatch 0 : Hello timer mismatch
                                                      0 : Dead timer mismatch 0 : Invalid Source Address

                                                      答案：D

                                                      解題說明：
                                                      According to the displayed OSPF error statistics from the Huawei device, the key HELLO packet error shown is:
                                                      yaml
                                                      CopyEdit
                                                      2 : Netmask mismatch
                                                      This indicates that the OSPF adjacency formation is failing due to a subnet mask mismatch between the two OSPF neighbors on the corresponding interface (GigabitEthernet 0/0/0). OSPF uses the subnet mask in Hello packets to ensure that neighbors are in the same network. If the masks do not match, OSPF will not form an adjacency.
                                                      From the Huawei Official HCIE-Datacom Study Guide (Version 3.0) - under the OSPF Troubleshooting Section:
                                                      " Netmask mismatch: If the subnet mask configured on the interfaces of OSPF neighbors does not match, a ' Netmask mismatch ' error occurs. OSPF requires neighbors to be on the same subnet to establish an adjacency. This is a common reason for failure in adjacency formation. " (Reference: Huawei HCIE-Datacom V3.0, OSPF Troubleshooting Chapter, Section 4.2 - OSPF Hello and Adjacency Establishment Issues) Thus, among the given options:
                                                      A). Area type inconsistency would result in an area ID mismatch error, not netmask.
                                                      B). Authentication mismatch would show a bad authentication key or type error.
                                                      D). Hello interval mismatches would trigger a Hello timer mismatch error.
                                                      Only C. The IP address masks of the interfaces are inconsistent directly matches the actual error observed:
                                                      Netmask mismatch.


                                                      問題 #195
                                                      Configuration under a certain interface: isis timer hello 5 level-2, the following statement is correct?

                                                      答案：A


                                                      問題 #196
                                                      As shown in the following figure, R1 and R2 establish a neighbor relationship with LeveL2, and the key configuration is as follows, so is the following route entry for R2 correct?

                                                      答案：A,C,D


                                                      問題 #197
                                                      The command ip as-path-fiter as-path-fiter-number (denylpermit) regular-expression to configure as-path-ilter, in this command , multiple sentences can form an as-path-filter statement, what is the relationship between so many statements?

                                                      答案：D


                                                      問題 #198
                                                      ......

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