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H3C GB0-191 : Constructing Small - and Medium - Sized Enterprise Network

GB0-191 real exams

Exam Code: GB0-191

Exam Name: Constructing Small - and Medium - Sized Enterprise Network

Updated: Jul 25, 2026

Q & A: 434 Questions and Answers

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H3C GB0-191 Exam Syllabus Topics:

SectionObjectives
H3C Network Device Basics- Device architecture and OS
  • 1. Comware OS basics and device types
    - File system and debugging
    • 1. Boot process, file management, ping/tracert
      - CLI operation and management
      • 1. Basic commands and configuration access
        Computer Network Fundamentals- OSI and TCP/IP models
        • 1. Layer functions and protocol mapping
          - Basic networking concepts and classifications
          • 1. Network types, topology, switching methods, performance indicators
            - LAN fundamentals
            • 1. Ethernet, MAC address, CSMA/CD, media types
              Advanced TCP/IP- Core network services
              • 1. DNS, DHCP, FTP/TFTP
                - IPv6 fundamentals
                • 1. Address types, ND, auto-configuration
                  - IP addressing and subnetting
                  • 1. VLSM, CIDR, subnet calculation
                    LAN Switching- Link aggregation and port security
                    • 1. LACP, port isolation, 802.1X basics
                      - VLAN technology
                      • 1. 802.1Q, trunk/access ports, VLAN segmentation
                        - Spanning Tree Protocol
                        • 1. STP/RSTP/MSTP roles, BPDU, loop prevention
                          - Switching fundamentals
                          • 1. MAC learning, forwarding, filtering

                            H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:

                            1. 在运行了 RIP 的 MSR 路由器上看到如下路由信息:
                            <MSR>display ip routing-table 6.6.6.6
                            Routing Table: Public
                            Summary Count: 2
                            Destination/Mask Proto Pre Cost NextHop Interface
                            6.6.0/24 RIP 100 1 100.1.1.1 GE0/0
                            6.0.0.0/8 Static 60 0 100.1.1.1 GE0/0
                            此时路由器收到一个目的地址为 6.6.6.6 的数据包,那么 ______ 。

                            A) 该数据包将优先匹配路由表中的静态路由,因为其花费 Cost 小
                            B) 该数据包将优先匹配路由表中 RIP 路由,因为其优先级高
                            C) 该数据包将优先匹配路由表中的 RIP 路由,因为其掩码最长
                            D) 该数据包将优先匹配路由表中的静态路由,因为其掩码最短


                            2. DNS 可以采用的传输层协议是 ______ 。

                            A) UDP
                            B) NCP
                            C) TCP 或 UDP
                            D) TCP


                            3. 客户的两台路由器通过 V.35 电缆背靠背连接在一起,并在 V.35 接口上运行了 PPP 协议,在其中一台路由器上有如下接口信息:
                            [MSR-Serial0/0]display interface Serial 0/0
                            Serial6/0 current state: UP
                            Line protocol current state: DOWN
                            从如上信息可以推测 ______ 。(多选)

                            A) PPP 的 LCP 协商有可能未通过
                            B) 两路由器 V.35 接口的 IP 地址有可能不在同一网段
                            C) 两路由器之间的物理连接正常,但 PPP 协议协商没有成功
                            D) PPP 验证可能失败了


                            4. 广域网接口多种多样,下列对于广域网接口的描述正确的是 ______ 。(多选)

                            A) V.24 规程接口可以工作在同异步两种方式下,在异步方式下,链路层使用 PPP 封装。
                            B) V.35 规程接口可以工作在同异步两种方式下,在异步方式下,链路层使用 PPP 封装。
                            C) BRI/PRI 接口用于 ISDN 接入,默认的链路封装是 PPP
                            D) G.703 接口提供高速数据同步通信服务。


                            5. 两台路由器 MSR-1 、 MSR-2 通过 RIP 完成路由的动态学习,在 MSR-1 上看到如下 debug 信息:
                            *Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending v2 request on Serial 0/0 from 3.3.3.3
                            *Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending request on interface Serial0/0 from 3.3.3.3 to 224.0.0.9
                            *Nov 26 02:20:25:400 2008 H3C RM/6/RMDEBUG: RIP 1 : Receiving v2 request on Serial0/0 from 3.3.3.1
                            根据 debug 信息可以推测 ______ 。(多选)

                            A) 两台路由器之间的 RIP 版本不一致
                            B) 此时在 MSR-1 路由表中已经有来自 MSR-2 的 RIP 路由信息
                            C) 此时在 MSR-1 路由表中还没有来自 MSR-2 的 RIP 路由信息
                            D) 有可能此时两台路由器的 RIP 刚刚启动


                            Solutions:

                            Question # 1
                            Answer: C
                            Question # 2
                            Answer: C
                            Question # 3
                            Answer: A,C,D
                            Question # 4
                            Answer: A,C,D
                            Question # 5
                            Answer: C,D

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