Last Updated: Aug 12, 2026
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Layer 3 Switching and Routing Protocols | 20-25% | - Static routing and RIP - Policy-based routing - OSPF principles, configuration and troubleshooting - VLAN interface and IP addressing |
| Topic 2: Switch Security Technologies | 10-15% | - Port security and 802.1X - IP Source Guard - Dynamic ARP Inspection - DHCP Snooping |
| Topic 3: High Reliability and Performance Technologies | 10-15% | - Stack and IRF virtualization - BFD and link detection - VRRP protocol and configuration - Traffic management and QoS |
| Topic 4: Campus Network Architecture and Design | 10-15% | - Design principles and requirements - Campus network hierarchical model - High availability design |
| Topic 5: Layer 2 Switching Technologies | 15-20% | - VLAN and VLAN mapping - STP/RSTP/MSTP protocols and configuration - Port isolation and storm suppression - Link aggregation and LACP |
| Topic 6: Multicast Technology | 10-15% | - Multicast deployment and optimization - Multicast basic concepts - PIM-SM/PIM-DM - IGMP protocol |
1. 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()
2. 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] gvrp
[SWA-GigabitEthernet1/0/1] port link-type trunk
[SWA-GigabitEthernet1/0/1] port trunk permit vlan 1 10
[SWA] interface GigabitEthernet 1/0/2
[SWA-GigabitEthernet1/0/2] port link-type trunk
[SWA-GigabitEthernet1/0/2] port trunk permit vlan 1 10
如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) 在 SWA 和 SWB 上都配置了链路聚合后,若 SWA 和 SWB 都在聚合端口上开启 MSTP ,则 GigabitEthernet1/0/1 和 GigabitEthe1/0/2 可以参加转发
B) 只有将 GigabitEthe1/0/2 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) 只有在 GigabitEthernet1/0/2 和 Gigabit1/0/1 上允许所有 VLAN 通过,二者才可以加入同一个聚合组
D) 在 SWASWB 上都配置了链路聚合后,若 SWA 和 SWB 都在聚合端口上开启 MSTP ,则 GigabitEthe1/0/1 和 GigabitEthe1/0/2 之中有一个会被阻塞
3. 关于 Voice VLAN 的网络应用模式,说法正确的有。(选择一项或多项)
A) Voice VLAN 模型中,交换机负责不同的业务分配不同的 VLAN TAG
B) DHCP 服务器可以有两个,分别位于 Voice VLAN 和数据 VLAN
C) Voice VLAN 组网模型组件包含 IP 电话、交换机、 DHCP 服务器、软件服务和呼叫代理
D) 交换机可以为 Voice VLAN 内的数据标记较高的优先级并提供高优先级的服务
4. 局域网存在环路可能会导致 .
A) MAC 地址学习错误
B) 广播风暴
C) 端速率发生变化
D) 端口双工模式发生变化
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 为传输节点, GigabitEthernet1/0/1 和 Gigabitethernet1/0/2 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, GigabitEthernet 1/0/1 和 GigabitEthem1/0/ 1/0/2 功能是一致的
D) 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
Solutions:
| Question # 1 Answer: Only visible for members | Question # 2 Answer: A | Question # 3 Answer: B,C,D | Question # 4 Answer: A,B | Question # 5 Answer: A,D |
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