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H3C GB0-372 Exam Syllabus Topics:

H3CSE-RS-SW Sample Questions:

1. 通过查看 IGMP 组信息,可以了解到的内容有

A) 组播组 IGMP 查询器
B) 组播组 Report 报文个数
C) 路由器维护的组播组信息
D) 组播组第一个发送 Report 报文的主机地址

2. 客户的局域网交换机 SWA 通过 GigabitEthernet 2/0/1 连接 SWB ,通过 GigabitEthernet 2/0/2 连接 SWC 且 SWA 交换机有如下配置:
[SWA] smart-link group 1
[SWA-smlk-group1] protected-vlan reference-instance 0 to 32
[SWA-smlk-group1] port gigabitethernet 2/0/1 slave
[SWA-smlk-group1] port gigabitethernet 2/0/2 master
[SWA-smlk-group1] flush enable control-vlan 10
如果交换机 SWA 、交换机 SWB 、交换机 SWC 互连接口允许所有 VLAN 通过,从上述信息可以得知

A) 如果 Gigabitethernet 2/0/1 端口故障,则 SWA 交换机将在所有 VLAN 内广播 flush 报文
B) 如果 Gigabitethernet 2/0/2 端口故障,则 SWA 交换机将在所有 VLAN 内广播 flush 报文
C) 正常情况下, SWA 交换机流量将通过 Gigabitethernet 2/0/1 上行
D) 正常情况下, SWA 交换机流量将通过 Gigabitethernet 2/0/2 上行

3. 在如图所示的交换网络中,交换机 SWA 上设置 VLAN10 为 lsolate-user-vlan , VLAN2 和 VLAN3 为 VLAN 10 的 Secondary VLAN ﹔交换机 SWB 上创建 VLAN2 和 VLAN20 ,并且设置 VLAN20 为 lsolate-user-vlan , VLAN4 为 VLAN20 的 Secondary VLAN 按照如图所示设置好各设备的 IP 地址后,下面说法正确的是（选择 - 项或多项)

A) PCA 的报文从 SWA 的 GigabitEthem1/0/1 端口进入,从 GigabitEthem1/0/3 端口出来后所带的 VLAN Tag 为 VLAN2
B) PCA 的报文从 SWA 的 GigabitEthem1/0/ 端口出来,进入 SWB 的 GigabitEthem1/0/4 端口后所带的 VLAN Tag 为 VLAN20
C) SWB 的报文从 SWA 的 GigabitEthem1/0/3 端口进入,从 GigabitEthem1/0/3 端口出来后所带的 VLAN Tag 为 VLAN20
D) SWB 访问 PCA 时,报文从 SWB 的 GigabitEthem1/0/4 所带的 VLAN Tag 为 VLAN10

4. 下列关于 PIMSSM 的表述,正确的有

A) 为与 IGMP 早期版本兼容, PIMSSM 中接收者也使用 IGMP V2 发送加入消息
B) 与 PIMSM 相比, PIMSSM 不需要 RP 提高了报文转发效率
C) 组播报文沿着组播源到接收者之间的 SPT 到达接收者
D) PIMSSM 可以简单看与 PIMSM 类似,当主机发送加入消息后,设备向组播源方向发送（ * , G )加入消息

5. 在 H3C 系列交换机上开启以太网端口的 QinQ 功能的配置命令为（)

Solutions: