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H3C GB0-392 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Security Architecture and Optimization | 20% - 25% | - Security threat analysis and defense
|
| Secure Optimized WAN Overview | 10% - 15% | - Enterprise network architecture models
|
| IPv6 Transition and Optimization | 10% - 15% | - Transition technologies
|
| Quality of Service Optimization | 15% - 20% | - Queue scheduling and congestion management - Traffic classification, marking and policing - QoS models and mechanisms
|
| Network Service Optimization | 15% - 20% | - Service optimization strategies
|
| High Availability and Reliability Technologies | 10% - 15% | - Fast convergence and recovery mechanisms
|
H3CSE-RS-NSO Sample Questions:
GRE 协议封装的报文中,载荷协议为 IPX 协议,承载协议为 IP 协议,该报文从链路层到载荷数据的封装顺序为。
- A. 链路层 GRE IPX IP 载荷数据
- B. 链路层 GRE IP IPX 载荷数据
- C. 链路层 IP GRE IPX 载荷数据
- D. 链路层 IPX GRE IP 载荷数据
Correct Answer: C 🗳️
下列关于 VPNv4 地址的说法正确的是。
- A. VPNv4 地址与 IPv4 地址相比多了 RD 前缀
- B. VPNv4 地址长度为 96bit
- C. VPNv4 地址不会在用户数据报文中出现
- D. 在 BGP MPLS VPN 组网中,公网上转发的报文目的地址是 VPNv4 地址
Correct Answer: A,C 🗳️
关于 VoIP 电话系统中的回声,下列描述哪些是错误的 ?
- A. 回声分为电学回声和声学回声,传统的电话系统中的电学回声主要是由于二、四线换阻抗不匹配引起的
- B. 语音网关设备本身并不带来新的回波,但由于 IP 网络带来网络时延,加大了回波时延,导致原来感觉不到的回波,在 VoIP 网络中变成能被感觉的回声。
- C. 语音网关设备在执行模数转换时可能会引入回声,但可以在语音网关中配置回声抑制功能降低这种影响。
- D. VoIP 网络,回声与编码的选择有关系,压缩比越大的编码在网络中相对回声越大。
Correct Answer: C,D 🗳️
在一个 BGP MPLS VPN 组网中,各个 PE 设备下联用户 VPN 的 RT 配置,此时关于各 VPN 用户互访关系说法正确的是。
- A. 用户 2 、用户 3 、用户 4 之家不能互相访问
- B. 用户 1 只能访问用户 2 、用户 3 、用户 4 中的一个
- C. 用户 2 、用户 3 、用户 4 可以通过 PE1 进行互访
- D. 用户 1 可以与用户 2 、用户 3 、用户 4 互访
Correct Answer: A,D 🗳️
下列关于 GRE 和 BGP MPLS VPN 的说法正确的有。
- A. GRE 的私网用户之间只能运行静态路由协议, BGP MPLS VPN 的私网用户之间运行 BGP 动态路由协议
- B. 它们都采用可隧道技术实现 VPN
- C. GRE 隧道需要静态配置建立, BGP MPLS VPN 的 MPLS 隧道动态建立
- D. 它们都是 VPN 技术
Correct Answer: B,C,D 🗳️
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