H3C GB0-371

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H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. 如图组网,初始时链路 2 没有连接,交换机均没有启用 STP , 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 数据传送业务的恢复过程说法正确的有（假设 PCA 不会主动发送数据)

A) PCB 到 PCA 的业务恢复默认需要 300 秒的时间
B) SWB 的 E0/1 接口可以立即进入转发状态
C) PCB 到 PCA 的业务恢复默认需要 30 秒的时间
D) SWC 可以立即将 PCB 到 PCA 的数据转发到 SWB

2. 关于 MSTP ,说法正确的有

A) MSTP 中一个 VLAN 可以根据 ^ 要映射到多个生成树实例
B) MSTP 中一个生成树实例可以包含多个 VLAN
C) MSTP 在 802.1s 中定义 ^ 其既可以满足快速收敛,又可以实现负载分担
D) MSTP 的基本思想是为每一个 VLAN 计算一颗生成树,每一颗树对应一个生成树实例

3. 客户局域网交换机 SWA 、 SWB 、 SWC 上构成 RRPP 环主环 1 ,从上述信息可以得知

A) 如果交换机 SWB 为传输节点,处于 Preforwarding 状态时,在规定时间内收不到主节点发来的 Complete-Flush-FDB 报文,自行放开临时阻塞端口
B) 如果交换机 SWB 为传输节点,处于 Preforwarding 状态时,在规定时间内收不到主节点发来的 CommonFlush-FDB 报文,自行放开临时阻塞端口
C) 如果交换机 SWA 为主节点, Failed 状态下发送 Common-Flush-FDB 报文通知所有传输节点刷新 FDB
D) 如果交换机 SWA 为主节点, Failed 状态下发送 Complete-Flush-FDB 报文通知所有传输节点刷新 FDB

4. 交换机 SWA 上启用了 GVRP ,设置了 Hold 定时器的值为 100 厘秒,现在要修改其他定时器的值,下列配置正确的是

A) [SWA-Ethernet1/0/1]garptimer leave 400
B) [SWA-Ethernet1/0/1]garp timer join 200
C) [SWA-Ethernet1/0/1]garptimer join 50
D) [SWA]garp timer leaveall 415

5. 主机 PCA 的 IP 地址为 40.1.1.1 , MAC 地址为 0011.1111.1111 ,连接在交换机 SWA 的 GigabitEthernet1/0/1 端口上,在交换机 SWA 上配置了如下命令:
[SWA]vlan 10
[SWA-vlan10]quit
[SWA]vlan 20
[SWA-vlan20]protocol-vlan ipv4
[SWA-vlan20]quit
[SWA]vlan 30
[SWA-vlan30]quit
[SWA]mac-vlan mac-address 0011-1111-1111 vlan 30
[SWA]vlan 40
[SWA-vlan40]ip-subnet-vlan ip 50.1.1.0 255.255.255.0
[SWA-vlan40]quit
[SWA]interface GigabitEthernet 1/0/1
[SWA-GigabitEthernet1/0/1]port link-type hybrid
[SWA-GigabitEthernet1/0/1]port hybrid pvid vlan 10
[SWA-GigabitEthernet1/0/1]port hybrid vlan 10 20 30 40 untagged
[SWA-GigabitEthernet1/0/1]port hybrid protocol-vlan vlan 20 0
[SWA-GigabitEthernet1/0/1]port hybrid ip-subnet-vlan vlan 40
[SWA-GigabitEthernet1/0/1]mac-vlan enable
[SWA-GigabitEthernet1/0/1]vlan precedence ip-subnet-vlan
配置完成后,可以判断 PCA 会加入

A) VLAN30
B) VLAN20
C) VLAN40
D) VLAN 10

Solutions: