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H3CSE-RS-SW Sample Questions:

1. 关于 MST 域,说法正确的有

A) 如果两个交换机配置的 MST 域名不相同,则这两个交换机一定属于不同的 MST 域
B) 运行 MSTP 的交换机之间需要交互完整的 VLAN 和实例的映射关系,如果映射关系不同则交换机不属于同一个 MST 域
C) MST 域之间运行的是 RSTP
D) 属于同一个 MST 域的交换机一定具有相同的 VLAN 和实例映射关系

2. SDN 有哪些典型特点 ? （选择一项或多项)

A) 集中化的网络控制
B) 开放的编程接口
C) 网络业务的自动化应用程序控制
D) 控制平面与转发平面分离

3. 关于 RSTP 和 STP 的 BPDU 处理方式的对比,说法正确的有

A) RSTP 交换机收到配置 BPDU 后,对优先级向量的计算、比较方法和 STP 相同
B) RSTP 沿袭了 STP 中配置 BPDU 的发送方式,配置 BPDU 仅由根桥周期性发出
C) RSTP 中,处于阻塞状态的端口在收到地优先的 BPDU 时,可以立即做出回应
D) RSTBPDU 的老化时间由 Max age 减少为 3 个连续的 Hello Time 时长

4. 某客户局域网络中部署基于 MAC 地址认证的方式来完善局域网安全,在设备上通过命令查看到设备的 MAC 地址学习类型为 auto learn ,那么对于该类型的描述正确的是。（选择 - 项或多项)

A) 该设备可能在全局启动了 802.1x 认证
B) 达到某条件后,设备可能会触发入侵检测特性
C) 在达到某条件后,端口会转变为 Secure 模式

5. 客户的二台交换机 SWA 、 SWB 通过七根以太网线连接在一起 , 并配置了动态链路聚合 , 交换机 SWA 上对应端口为 Ethernet 1/0 Ethernet 1/0/2 、 Ethernet 1/0/3 、 Ethernet 1/0/4 、 Ethernet 1/0/5 、 Ethernet 1/0/6 、 Ethernet1/0/7
如果交换机 SWA 、 SWB 每个聚合组只支持 6 个端口,且 SWA 交换机有如下配置:
[SWA] interface Ethernet 1/0/7
[SWA-Ethernet1/0/7] lacp port-priority 4096 i
设备上查看 LACP 状态输出如下:
[SWA] display lacp system-id
Actor System ID: 0x8000 , 00e1-fc00-5000
[SWB] display lacp system-id
Actor System ID: 0x8000 , 00e0-fc43-7384
从上述信息可以得知

A) 在各端口配置一致的情况下, Ethernet1/0/1 端口为聚合组 Unselected 端口
B) 在各端口配置 - 致的情况下, Ethernet1/0/6 端口为聚合组 Unselected 端口
C) 在各端口配置 - 致的情况下, Ethernet1/0/7 端口为聚合组 Unselected 端口
D) 在各端口配置 - 致的情况下, Ethernet1/0/2 端口为聚合组 Unselected 端口

Solutions: