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H3C GB0-371 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Campus Network Security | - Access Control
|
| Topic 2: Spanning Tree and Redundancy Protocols | - High Availability Technologies
|
| Topic 3: Campus Network Fundamentals | - Campus Network Architecture
|
| Topic 4: IP Multicast | - Multicast Concepts
|
| Topic 5: VLAN and Switching Technologies | - VLAN Concepts
|
H3C Constructing H3C High-Performance Campus Networks Sample Questions:
以下属于核心层功能的是（选择一项或多项)
- A. 拥有大量的接口,用于与最终用户计算机相连
- B. 接入安全控制
- C. 高速的包交换
- D. 必要的路由策略
Correct Answer: C,D 🗳️
如图组网, SWA 和 SWB 启用 STP , SWC 没有启用 STP 初始时链路 2 没有连接, PCB 可以将数据发到 PCA ,如果此时链路 1 故障,维护人员将链路 2 连接,则关于 PCB 到 PCA 数据传送业的恢复过程的说法正确的有（假设 PCA 不会主动发送数据) __
- A. 业务恢复需要等待 SWC 的 MAC 地址老化,所以需要默认 300 秒的时间
- B. 由于 SWA 链路中断会引发拓扑改变处理过程,使得 SWA 和 SWB 的 MAC 地址老化时间缩短,所以业务恢复默认需要 15 秒时间
- C. 由于 SWB 的端口 E0/1 默认需要 30 秒的时间进入转发状态,所以业务需要默认 30 秒的时间才能恢复
- D. 当 SWB 的端口 E0/1 进入 Forwarding 状态会引发拓扑改变处理过程,所以业务最终恢复需要默认 30+15=45 秒的时间
Correct Answer: A 🗳️
如图组网,交换机均运行 RSTP ,初始时 SWA 、 SWB 和 SWC 通过链路 1 、 2 、 3 互连,则当网络连接发生下列变化时,说法正确的有
- A. 当 SWB 和 SWC 之间的链路 DOWN 掉,则 SWB 和 SWC 均会发送 TC 置位的 RST BPDU
- B. 如图当 SWB 和另一运行 RSTP 的交换机 SWD 相连后, SWB 会发送 TC 置位的 RSTBPDU
- C. 如图当 SWB 和另一运行 RSTP 的交换机 SWD 相连后, SWD 会发送 TC 置位的 RSTBPDU
- D. 当 SWC 的边缘端口 E0/1 连接一台 PC 机后, SWC 会发送 TC 置位的 RST BPDU
Correct Answer: B 🗳️
AAA 是网络安全的一种管理机制,它可以提供哪些安全功能
- A. 计费（ Accounting )
- B. 认证（ Authentication )
- C. 接入（ Access )
- D. 控制（ ACL )
Correct Answer: A,B 🗳️
下面关于交换机 VLAN 间通信说法正确的是
- A. 二层交换机划分 VLAN 后,不同的 VLAN 的主机可以借助路由器实现通信,方法是路由器用一个接口连接交换机的 Trunk 口,且路由器必须支持 802.1Q 协议
- B. 二层交换机划分 VLAN 后,不同的 VLAN 的主机可以借助路由器实现通信,方法是路由器到各个 VLAN 各有一个物理接口和一条物理连接
- C. 三层交换机划分 VLAN 后,不同的 VLAN 的主机可以实现通信,方法是三层交换机为每个 VLAN 创建一个虚拟的三层 VLAN 接口,需要 VLAN 接口配置相应的 IP 地址
- D. 交换机划分 VLAN 内的主机可以通信, VLAN 的主机没有办法互通的
Correct Answer: A,B,C,D 🗳️
