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H3C GB0-191 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: LAN Switching Technologies | 25% | - VLAN configuration and trunking - Link aggregation and port security - Ethernet switching principles - STP/RSTP/MSTP protocols |
| Topic 2: IP Routing Technologies | 20% | - Routing table principles - RIP protocol basics and configuration - Introduction to OSPF - Static routing configuration |
| Topic 3: Advanced TCP/IP and IP Addressing | 15% | - IPv4 addressing and subnetting - IPv6 basics and address format - ARP, ICMP, DNS and DHCP |
| Topic 4: Network Security and Management | 10% | - Access control list (ACL) fundamentals - Basic security policies - Device management and troubleshooting |
| Topic 5: Computer Network Fundamentals | 10% | - TCP/UDP principles and application - LAN & WAN basic concepts - OSI & TCP/IP reference models |
| Topic 6: Getting Started with H3C Network Devices | 10% | - Device file management and system maintenance - H3C Comware operating system - Command-line interface basics |
| Topic 7: WAN Access and Interconnection | 10% | - HDLC and PPP protocols - Common WAN technologies - NAT/PAT configuration |
H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:
以下关于 Trunk 端口、链路的描述错误的是 ______ 。(多选)
- A. 在 Trunk 链路上传送的数据帧都是带 VLAN ID 的
- B. Trunk 链路可以承载带有不同 VLAN ID 的数据帧
- C. Trunk 端口发送数据帧时,若数据帧不带有 VLAN ID ,则对数据帧加上相应的 PVID 值作为 VLAN ID
- D. Trunk 端口的 PVID 值不可以修改
Correct Answer: A,C,D 🗳️
某企业网络管理员需要设置一个子网掩码将其负责的 C 类网络 211.110.10.0 划分为子网,要求每个子网的主机数不少于 20 ,请问可以采用多少位的子网掩码进行划分 ? (多选)
- A. 25
- B. 26
- C. 27
- D. 28
- E. 29
Correct Answer: A,B,C 🗳️
两台 MSR 路由器 MSR-1 、 MSR-2 通过各自的 S1/0 接口背靠背互连,各自的 GigabitEthernet0/0 接口分别连接客户端主机 HostA 和 HostB : HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
通过配置 IP 地址和路由目前网络中 HostA 可以和 HostB 实现互通,如今在路由器 MSR-1 上增加如下 ACL 配置:
acl number 3000
rule 0 deny icmp icmp-type echo
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
firewall packet-filter 3000 inbound
那么如下说法哪些是正确的 ? (多选题)
- A. 在 HostB 上能 ping 通 HostA
- B. 在 MSR-1 上能 ping 通 HostB
- C. 在 HostA 上 ping 不通 HostB
- D. 在 HostA 上将 ping 不通自己的网关地址,即 MSR-1 上的 GE0/0 的接口地址
Correct Answer: A,B,C,D 🗳️
客户的路由器 MSR-1 的 GigabitEthernet0/0 接口下连接了一台三层交换机,而此三层交换机为客户办公网络的多个网段的默认网关所在。同时该路由器的广域网接口连接到 Internet ,而 Internet 上有 DNS 服务器为客户局域网内的主机提供服务,客户的办公网络可以正常访问 Internet ,如今在 MSR-1 的 GigabitEthernet0/0 的 inbound 方向应用了如下 ACL :
firewall enable
acl number 3006
rule 0 deny tcp source 192.168.1.0 0.0.0.255
rule 5 permit ip
那么 ______ 。(多选)
- A. 192.168.1.0/24 网段的客户不能通过 WWW 方式打开外部网页
- B. 192.168.0.0/24 网段的客户可以通过 FTP 方式从 Internet 上下载数据
- C. 192.168.1.0/24 网段的客户可以通过 Outlook 等邮件客户端正常收发外部邮件
- D. 192.168.1.0/24 网段的客户不能够通过 Outlook 等邮件客户端收发外部邮件
Correct Answer: A,B,D 🗳️
RIP 从某个接口学到路由后,将该路由的度量值设置为无穷大( 16 ),并从原接口发回邻居路由器,这种避免环路的方法为 ______ 。
- A. Route Poisoning
- B. Split Horizon
- C. Poison Reverse
- D. Triggered Update
Correct Answer: C 🗳️


