H3C GB0-371 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Campus Network Architecture and Design | 15% | - High-performance campus network requirements - Hierarchical network design model - Core, aggregation and access layer characteristics |
| Topic 2: VLAN and VLAN Extension Technologies | 20% | - VLAN mapping and VLAN translation - QinQ technology and application - Protocol-based VLAN and IP-subnet VLAN - VLAN principles and configuration |
| Topic 3: Spanning Tree Protocols | 15% | - MSTP principles, regions and instances - RSTP concepts and configuration - MSTP optimization and protection |
| Topic 4: High Availability Technologies | 20% | - VRRP protocol and deployment - Link aggregation (LACP/static) - BFD and fast failure detection - Device-level redundancy mechanisms |
| Topic 5: Multicast in Campus Networks | 10% | - IGMPv1/v2/v3 operation - PIM-SM and PIM-DM basics - Multicast deployment and optimization |
| Topic 6: Campus Network Security | 15% | - 802.1X authentication - Port security and MAC address control - Storm control and traffic filtering - DHCP snooping and ARP protection |
| Topic 7: Network Management and Maintenance | 5% | - Traffic monitoring and troubleshooting - SNMP and RMON - Common fault diagnosis methods |
H3C Constructing H3C High-Performance Campus Networks Sample Questions:
Question #1
关于 MSTP 的基本概念,说法正确的有
A. 默认情况 MST 域内的所有 VLAN 都映射到 IST
B. CST 运行时,将 MST 域视为逻辑上的一台交换机, CST 的根桥为总根所属的域
C. CST 是指域之间的一棵生成树,它是 MST 域之间运行 STP/RSTP 得到的
D. IST 是 MST 域内的一棵生成树, IST 对应的实例号为 0
Question #2
关于 MSTP 的 P/A 机制,说法正确的有
A. 通过在端口配置 stp no-agreement-check , MSTP 交换机将不会检査上游发送的 Proposal BPDU 中是否将 Agreement 位置位
B. MSTP 中,下游设备只有在收到上游设备发送的 Proposal 和 Agreement 均置位的 BPDU ,才会回应 Agreement 置位的 BPDU
C. 图中,默认情况下 SWA 的端口 E1/0/1 需要等待两倍的 Forward Delay 时长才可以进入 Forwarding 状态
D. RSTP 和 MSTP 均要求上游设备的指定端口在接收到下游设备的 Agreement 报文后才能进行快速迁移
Question #3
关于配置 BPDU 和 TCNBPDU ,说法正确的有
A. AIternate 端口既不会发送配置 BPDU 也不会发送 TCNBPDU
B. 配置 BPDU 通常仅由根桥周期性发出, TCNBPDU 除根桥外其他网桥都可能发出
C. 配置 BPDU 仅从指定端口发出, TCNBPDU 仅从根端口发出
D. 配置 BPDU 通常仅从根端口接收, TCNBPDU 仅从指定端口接收
Question #4
下面关于交换机 VLAN 间通信说法正确的是
A. 二层交换机划分 VLAN 后,不同的 VLAN 的主机可以借助路由器实现通信,方法是路由器用一个接口连接交换机的 Trunk 口,且路由器必须支持 802.1Q 协议
B. 三层交换机划分 VLAN 后,不同的 VLAN 的主机可以实现通信,方法是三层交换机为每个 VLAN 创建一个虚拟的三层 VLAN 接口,需要 VLAN 接口配置相应的 IP 地址
C. 二层交换机划分 VLAN 后,不同的 VLAN 的主机可以借助路由器实现通信,方法是路由器到各个 VLAN 各有一个物理接口和一条物理连接
D. 交换机划分 VLAN 内的主机可以通信, VLAN 的主机没有办法互通的
Question #5
对下列关于配置命令:
[H3C] ntp-service refclock-master 127.127.1.1 6
的理解,哪些是正确的
A. 成功配置此命令的设备,可以作为时钟服务器对外提供时钟同步服务了
B. 该命令可以在所有 H3C 系列交换机上配置成功
C. 该命令是将本地时钟配置为系统的参考时钟
D. 成功配置此命令的设备,其用层数表示的时钟精度为 6
Solutions:
| Question #1 Correct Answer: A,B,C,D | Question #2 Correct Answer: A,B,C,D | Question #3 Correct Answer: A,B,C,D | Question #4 Correct Answer: A,B,C,D | Question #5 Correct Answer: A,C,D |
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