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H3C GB0-191 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Computer Network Fundamentals | 10% | - OSI & TCP/IP reference models - LAN & WAN basic concepts - TCP/UDP principles and application |
| Topic 2: Network Security and Management | 10% | - Access control list (ACL) fundamentals - Device management and troubleshooting - Basic security policies |
| Topic 3: Advanced TCP/IP and IP Addressing | 15% | - IPv4 addressing and subnetting - ARP, ICMP, DNS and DHCP - IPv6 basics and address format |
| Topic 4: Getting Started with H3C Network Devices | 10% | - Device file management and system maintenance - Command-line interface basics - H3C Comware operating system |
| Topic 5: IP Routing Technologies | 20% | - RIP protocol basics and configuration - Routing table principles - Introduction to OSPF - Static routing configuration |
| Topic 6: WAN Access and Interconnection | 10% | - Common WAN technologies - NAT/PAT configuration - HDLC and PPP protocols |
| Topic 7: LAN Switching Technologies | 25% | - Link aggregation and port security - VLAN configuration and trunking - STP/RSTP/MSTP protocols - Ethernet switching principles |
H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:
Question 1
某网络连接如图所示。
其中四台路由器的所有接口都配置了 OSPF ,并且都运行在 OSPF 区域 23 中。所有网段都可以互相连通。
各路由器之间互连链路的 OSPF Cost 如图所示。那么下列描述正确的是 ______ 。(多选)
A. 经过 SPF 计算, RTC 到达 192.168.4.0/24 与到达 192.168.2.0/24 的路径 Cost 值相同,因此在 RTC 上将形成等价路由
B. RTC 根据 SPF 算法算出到达 192.168.2.0/24 网段的最佳路径为 C->A->B
C. RTC 将有两个 OSPF 邻居
D. RTD 具有与 RTA 同样的 LSDB
Question 2
在如图所示的交换网络中,所有交换机都启用了 STP 协议。
根据图中的信息来看,哪台交换机会被选为根桥 ?
A. SWB
B. 信息不足,无法判断
C. SWD
D. SWA
E. SWC
Question 3
UDP 协议和 TCP 协议头部的共同字段有 ______ 。(多选)
A. 校验和
B. 目的端口
C. 源 IP 地址
D. 源端口
E. 流量控制
F. 序列号
Question 4
IPv6 链路本地地址属于 ______ 地址类型。
A. 任播
B. 单播
C. 广播
D. 组播
Question 5
以下说法正确的是 ______ 。(多选)
A. DTE ( Data Terminal Equipment ,数据终端设备)设备指位于用户网络接口用户端的设备,它能够作为信源、信宿或同时为二者。数据终端设备通过数据通信设备(例如,调制解调器)连接到一个数据网络上,并且通常使用数据通信设备产生的时钟信号。调制解调器和接口卡都是 DTE 设备的例子。是 DCE 设备的例子
B. DCE ( Data Circuit Terminating Equipment ,数据通信设备或者数据电路终端设备)设备及其与通信网络的连接构成了网络终端的用户网络接口。它提供了到网络的一条物理连接用于转发业务量,并且提供了一个用于同步 DCE 设备和 DTE 设备之间数据传输的时钟信号。
C. CSU ( Channel Service Unit ,信道服务单元):把终端用户和本地数字电话环路相连的数字接口设备。通常它和 DSU 统称为 CSU/DSU 。 CSU 设备包括计算机、协议翻译器以及多路分解器等设备。 DTE 设备包括这些
D. DSU ( Data Service Unit ,数据服务单元):指的是用于数字传输中的一种设备,它能够把 DTE 设备上的物理层接口适配到 T1 或者 E1 等通信设施上。数据业务单元也负责信号计时等功能,它通常与 CSU 一起提及,称作 CSU/DSU 。
Solutions:
| Question 1 Answer: B,D | Question 2 Answer: A | Question 3 Answer: A,B,D | Question 4 Answer: B | Question 5 Answer: B,D |


