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H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. 如图所示的网络中,在交换机 SWA 上完成相应配置,且交换机 SWA 和各 PC 都学习到了相应的 ARP 表项 PCA 访问 PCB 发送了 ICMP 请求报文,交换机 SWA 向 PCB 转发此报文时,报文的源 IP 地址为

A) 10.1.1.1
B) 20.1.1.1
C) 20.1.1.2
D) 10.1.1.2

2. 在如图所示的交换网络中,交换机 SWA 上设置 VLAN10 是 Isolate-user-vlan VLAN2 和 VLAN3 是 VLAN 10 的 Secondary VLAN ；交换机 SWB 上创建 VLAN2?VLAN20 ,并且设置 VLAN20 是 Isolate-user-vlan , VLAN4 是 VLAN20 的 Secondary VLA 按照如图所示设置好各设备的 IP 地址后,可以判断

A) PCC 可以和 SWA 互通
B) PCC 可以和 PCB 互通
C) PCC 可以和 PCA 互通
D) PCC 可以和 SWB 互通

3. 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) 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
B) 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
C) 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
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

4. 如题图组网, SWA 、 SWB 和 SWC 启用 STP ,如果拓扑收敛后,将 SWA 的桥优先级设置为 61440 ,则下列说法正确的有

A) SWB 在本地保存的配置 BPDU 老化后会向 SWA 发送以自身为根的配置 BPDU
B) 优先级调整后,开始 SWA 仍然会发送以自己为根的配置 BPDU
C) 默认 30 秒后拓扑会重新实现收敛
D) SWC 收到低优先级的配置 BPDU 后会立即回应以自身为根的配置 BPDU

5. 客户局域网交换机 SWA 、 SWB 、 SWC 上构成 RRPP 环主环 1 ,交换机 SWA 上有如下配置信息:
[SWA] rrpp domain 1
[SWA-rrpp-domain1] control-vlan 4092
如果交换机 SWA 端口 Gigabitethernet1/0/1 和 Gigabitethernet 1/0/2 接入 RRPP 环从上述信息可以得知

A) 如果 SWA 为主节点, GigabitEthernet 1/0/1 和 GigabitEthem1/0/ 1/0/2 功能是一致的
B) 如果 SWA 为传输节点,当 RRPP 环处于健康状态时, SWA 主端口只容许 VLAN4092 通过
C) 如果 SWA 为主节点,当 R&PP 环处于健康状态时, SWA 副端口只容许 VLAN4092 通过
D) 如果 SWA 为传输节点, Gigabitethernet1/0/1 和 Gigabitethernet1/0/2 功能是一致的

Solutions: