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H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. 关于 RSTP 和 STP 的关系,说法正确的有

A) 运行 RSTP 的交换机可以和运行 STP 的交换机协同工作,并改善 STP 的收敛时间
B) RSTP 具备 STP 的所有功能,但其仅使用了一种类型的 BPDU
C) RSTP 在旧 EE802.1 D 标准中定义,其协议思想和 STP 相同,但在收敛时间上作了改进
D) RSTP 可以在 STP 的基础之上实现不同 VLAN 的数据在 Trunk 链路上的负载分担

2. 组播 IP 地址为 229.130.130.1 ,其对应的组播 mac 地址为 _____.

A) 01-00-5E-82-82-01
B) 00-00-5E-02-82-01
C) 01-00-5E-02-82-01
D) 00-00-5E-82-82-01

3. 对下列关于配置命令:
[H3C] ntp-service refclock-master 127.127.1.1 6
的理解,哪些是正确的

A) 成功配置此命令的设备,其用层数表示的时钟精度为 6
B) 成功配置此命令的设备,可以作为时钟服务器对外提供时钟同步服务了
C) 该命令可以在所有 H3C 系列交换机上配置成功
D) 该命令是将本地时钟配置为系统的参考时钟

4. 组播 IP 地址为 229.130.130.1 ,其对应的 MAC 地址为:

A) 01-00-5E-82-82-01
B) 00-00-5E-02-82-01
C) 01-00-5E-02-82-01
D) 00-00-5E-82-82-01

5. 如图组网,交换机启用 RSTP ,关于其配置下列说法正确的有

A) 可以将 SWB 和 SWC 互连的端口配置为边缘端口,实现拓扑的快速收敛
B) 如果边缘端口收到 BPDU 则会进入阻塞状态
C) 可以将 SWB 和 SWC 的端口 E0/3 配置为边缘端口
D) 配置为边缘端口的端口可以直接进入转发状态,不需要延时

Solutions: