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H3C GB0-371 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Campus Network Security | 15% | - Port security and MAC address control - 802.1X authentication - DHCP snooping and ARP protection - Storm control and traffic filtering |
| VLAN and VLAN Extension Technologies | 20% | - Protocol-based VLAN and IP-subnet VLAN - VLAN principles and configuration - QinQ technology and application - VLAN mapping and VLAN translation |
| Network Management and Maintenance | 5% | - Traffic monitoring and troubleshooting - SNMP and RMON - Common fault diagnosis methods |
| Multicast in Campus Networks | 10% | - IGMPv1/v2/v3 operation - PIM-SM and PIM-DM basics - Multicast deployment and optimization |
| High Availability Technologies | 20% | - BFD and fast failure detection - Link aggregation (LACP/static) - Device-level redundancy mechanisms - VRRP protocol and deployment |
| Campus Network Architecture and Design | 15% | - Hierarchical network design model - High-performance campus network requirements - Core, aggregation and access layer characteristics |
| Spanning Tree Protocols | 15% | - MSTP optimization and protection - RSTP concepts and configuration - MSTP principles, regions and instances |
H3C Constructing H3C High-Performance Campus Networks Sample Questions:
1. 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) 该命令可以在所有 H3C 系列交换机上配置成功
B) 成功配置此命令的设备,其用层数表示的时钟精度为 6
C) 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
D) 该命令是将本地时钟配置为系统的参考时钟
2. 如图所示组网中, RT1 、 RT2 、 RT3 和 RT4 之间互连线除共享以太网部分为 10M 链路外,其余均为 1000M 链路,运行 OSPF 协议使路由互通这 4 台路由器间均运行 PIMSM 协议, RP 为 1.1.1.1 , RT1 与 RT2 下游接口上连有接收者,且均在相应接口上使能 IGMP 那么,当接收者( Receiver )发送组加入请求后,下列哪些路由器上存在( * , G )表项 -
A) RT2
B) RT4
C) RT1
D) RT3
3. 下面关于精确匹配交换机和最长匹配交换机的描述正确的是
A) 最长匹配交换机通过软件査找路由表进行逐
B) 最长匹配交换机通过硬件表项来代替软件路由表,在査找时遵循最长匹配原则,在网络蠕虫极其严重的情况下,仍然能保证 IP 报文的线速转发
C) 精确匹配交换机通过软件査找路由表进行逐包转发
D) 精确匹配交换机是在首包通过软件査找处理之后,再通过硬件完成后续报文的转发,但不能应对蠕虫病毒对路由造成的冲击
4. 关于 RP 和 BSR ,下列说法正确的有
A) BSR 负责在 PIM-SM 域 i 收集并发布 RP 信息
B) PIM-SM 中 RP 可以通过手工指定,也可以通过动态选举
C) 在一个 PIM-SM 域中只能有一个 BSR
D) 配置 RP 通过动态选举时,可以把有意成为 RP 的路由器配置为 C-RP
5. 生成树配置中的 stp mcheck 命令,说法正确的有
A) 通过在 RSTP 或 MSTP 交换机端口上运行该命令,可以将端口的生成树描述切换到 STP
B) 该命令用于运行 RSTP 或 MSTP 的交换机端口连接 STP 设备时使用
C) 该命令用于 RSTP 交换机和 MSTP 交换机互联时使用
D) 该命令在不同厂商的交换机互连,且运行 MSTP 时使用,用于检查摘要信息
Solutions:
| Question # 1 Answer: B,C,D | Question # 2 Answer: A,C,D | Question # 3 Answer: B,D | Question # 4 Answer: A,B,C,D | Question # 5 Answer: B |
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