H3C : GB0-191 Questions & Answers

Updated: Aug 04, 2026

No. of Questions: 434 Questions & Answers with Testing Engine

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H3C GB0-191 Exam Syllabus Topics:

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

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

                            1. B 类地址的默认子网掩码是 ______ 。

                            A) 255.255.0.0
                            B) 255.0.0.0
                            C) 以上都不正确
                            D) 255.255.255.0


                            2. DHCP 客户端收到 DHCP ACK 报文后如果发现自己即将使用的 IP 地址已经存在于网络中,那么它将向 DHCP 服务器发送什么报文 ?

                            A) DHCP Request
                            B) DHCP Decline
                            C) DHCP Inform
                            D) DHCP Release


                            3. 在打开 debugging 调试以后,可以使用 ______ 命令关掉 debugging 。

                            A) undo terminal monitor
                            B) undo terminal debugging
                            C) no debugging all
                            D) undo debugging all


                            4. 下面关于 OSI 参考模型各层功能的说法正确的是 ______ 。(多选)

                            A) 网络层决定传输报文的最佳路由,其关键问题是确定数据包从源端到目的端如何选择路由。
                            B) 物理层涉及在通信信道( Channel )上传输的原始比特流,它定义了传输数据所需要的机械、电气功能及规程等特性。
                            C) 会话层负责数据格式处理、数据加密等。
                            D) 应用层负责为应用程序提供网络服务。
                            E) 传输层的基本功能是建立、维护虚电路,进行差错校验和流量控制。


                            5. 一台路由器接口信息显示如下:
                            Serial0/0 current state: UP
                            Line protocol current state: DOWN
                            Physical layer is synchronous , Baudrate is 64000 bps
                            Interface is DCE , Cable type is V35 , Clock mode is DCECLK
                            那么该接口上可能封装或运行了哪种协议 ?

                            A) RIP
                            B) HDLC
                            C) Frame Relay
                            D) PPP
                            E) 以上答案都不正确


                            Solutions:

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

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