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H3C GB0-372 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Spanning Tree and Redundancy | - STP Protocols
|
| Network Maintenance & Troubleshooting | - Fault Diagnosis
|
| Campus Network Technologies | - LAN Switching
|
| Network Security & Services | - Security Fundamentals
|
| Routing Technologies | - IP Routing
|
H3CSE-RS-SW Sample Questions:
下列关于 PIMSM 中 RP 选举的表述,正确的有
- A. BSR 收集宣告报文信息后,将其汇总为 RP-Set ,并组播发送
- B. 一个 RP 可以为多个组播组服务
- C. - 个组播组可以选择多个 RP 进行负载分担
- D. C-RP 路由器周期性发送的宣告报文信息包括 C-RP 地址、优先级以及其服务的组播组范围等信息
Correct Answer: A,B,D 🗳️
EVPN 组网下, RT 、 RD 自动生成的规则是怎样的 ? （选择一项或多项)
- A. 自动生成的 RD 取值为 "BGP AS : VXLANID"
- B. 自动生成的 RT 取值为 "BGP AS : VXLANID"
- C. 自动生成的 RT 取值为 "BGP AS:VXLAN ID+N , N 为从 1 开始的整数如果有重复的 RD 则 N+1 ,直至找到没有被使用的 RD 。
- D. 自动生成的 RD 取值为 "N:VXLANID" , N 为从 1 开始的整数如果有重复的 RD 则 N+1 ,直至找到没有被使用的 RD 。
Correct Answer: B,D 🗳️
以下有关 VXLAN 报文的说法,哪些是正确的 ? （选择 - 项或多项)
- A. VXLAN 报文中 IP 头的源目 IP 是 VXLAN 赇道的源目 IP
- B. 与传统网络相比, VNI 取代 VLANID ,用来表示不同的 VXLAN 网络
- C. 在 VXLAN 头中,标志位有 8bits
- D. VXLAN 头是封装在 UDP 头里面的
Correct Answer: A,B,C,D 🗳️
交换机 SWA 、 SWB 通过二根光纤千兆以太网链路连接在一起 , 其中交换机 SWA 上有如下接口配置 :[SWA] interface GigabitEthernet 1/0/1
[sWA-GigabitEthernet1/0/1] port link-type trunk
[SWA-GigabitEthernet1/0/1] port trunk permit vlan 1 10 100
[SWA] interface GigabitEthernet 1/0/2
[SWA-GigabitEthernet1/0/2] port link-type trunk
[SWA-GigabitEthernet1/0/2] port trunk permit vlan 1 10
若要配置链路聚合将这两条链路聚合在一起。如果 SWB 上配置是正确的,从上述信息可以得知
- A. 因为允许通过的 VLAN 不同, GigabitEthe1/0/1 和 GigabitEthe1/0/2 无法加入同一个聚合组
- B. 只有将 GigabitE1/0/2 的配置改为与 GigabitEthe1/0/1 一致,二者才可以加入同一个聚合组
- C. 不需要更改允许通过的 VLAN 配置, GigabitEthernet1/0/1 和 GigabitEthernet 1/0/2 就可以加入同一个聚合组
- D. 在 SWA 和 SWB 上都配置了链路聚合后,若交换机 SWA 和 SWB 开启 MSTP 则 GigabitEthe1/0/1 和 GigabitEthernet 1/0/2 的 MSTP 端口状态 - 致
Correct Answer: A,B 🗳️
关于 MSTP 的计算过程,说法正确的有
- A. 在进行 CST 计算时,会优先考虑外部路径开销,只有在外部路径开销相同时才会比较内部路径开销
- B. MSTP 中由于链路两端的端口在不同的实例中可能均为指定端口,所以链路两端的端口可能同时既会接收也会发送 MST BPDU
- C. MSTP 的计算过程为,首先通过 MSTBPDU 进行 CST 和 IST 的计算,然后域内的交换机发送 MSTIBPDU 进行各实例生成树的计算
- D. CST 上的 Alternate 端口和 Backup 端口一定是域边界端口,一定不会处于 MST 域内
Correct Answer: B,D 🗳️
