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H3C GB0-392 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Monitoring and Troubleshooting | 20% - 25% | - Traffic Analysis - Performance Monitoring Tools - Root Cause Analysis - Fault Detection |
| Topic 2: High Availability and Reliability | 10% - 15% | - Network Resilience Design - Redundancy Technologies - Fast Recovery Mechanisms |
| Topic 3: Network Service Optimization Fundamentals | 10% - 15% | - NSO Concepts - Network Performance Indicators - Service Optimization Principles |
| Topic 4: Quality of Service Optimization | 15% - 20% | - Traffic Classification - Congestion Management - Bandwidth Optimization - QoS Models |
| Topic 5: Security and Service Assurance | 10% - 15% | - Service Availability Assurance - Risk Identification and Mitigation - Network Security Optimization |
| Topic 6: Routing and Switching Service Analysis | 20% - 25% | - Switching Performance Analysis - Routing Protocol Optimization - Convergence Optimization |
H3CSE-RS-NSO Sample Questions:
某设备某接口出方向发生拥塞,观察发现其所有 TCP 连接的流量以相同的频率持续震荡,带宽的平均利用率大大降低,为了解决带宽利用率低的问题,可以采用技术。
- A. LR
- B. WRED
- C. 尾丢弃
- D. RED
Correct Answer: B,D 🗳️
四台路由器 R1 、 R2 、 R3 和 R4 顺序相连, R1 和 R4 上创建 Loopback0 接口,接口地址分别为 1.1.1.1 和 4444 ,四台设备分别配置静态路由协议,保证 R1 和 R4 的 Loopback0 地址路由可达, R1 和 R4 间建立 GRE Tunnel ,查看 R1 上 Tunnel 接口信息如下:
[R1] displa interface Tunnel O
Tunnelo current state: UP
Tunnelo current statle: UP
Line protocol current state: UP
D. escription: Tunnel 0 Interface
The Maximum transmit Unit is 1476
Internet Addess is 10.0.0.1/30 Primar .Encapsulation isTUNNEL aggregation ID not set
Tunnel source l.1.1.1 destination 4.4.4.4
Tunnel keeepalive disable
Tunnel protocol/transport GRE/IP.GRE key disable
Checksumming of GRE packets disabled
Last 300 seconds input: . 2 btes/secl 0 packet/sec.Last 300 seconds output : . .2 bytes/sec, O packets/sec .15.packets input 840bytes.0. input error
27packets output, 1248btes
00utput error
此时,若中断 R2 和 R3 之间链路,则下列说法正确的是
- A. R1 上的 -Tunnel 接口保持 UP 状态
- B. R1 上的 Tunnel 接口状态 DOWN
- C. R4 的 Tunnel 接口 IP 地址应为 10.0.0.2
- D. R4 的 Tunnel 接口的源 IP 为 4.4.4.4 ,目的 IP 为 1.1.1.1
Correct Answer: A,C,D 🗳️
VoIP 网络中, VAD 技术所节约的宽带与下列哪些因素无关 ?
- A. 网络拥塞程度
- B. 选用的编码类型
- C. 选用的信令类型
- D. 说话者的语言和特征
Correct Answer: A,C 🗳️
安全管理需要关注的内容有。
- A. 用户对安全制度的遵守情况
- B. 网络上的流程情况
- C. 网络上发生的安全事件
- D. 网络上用户的行为
Correct Answer: A,B,C,D 🗳️
G 良好的安全制度应做到。
- A. 确保安全制度能够形成一个良性循环,不断自我完善
- B. 对长期遵循安全制度的人员进行奖励
- C. 确保每一项工作都有规章制度可循
- D. 对于违反安全制度的人员进行处罚
Correct Answer: A,B,C,D 🗳️
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