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H3C GB0-392 Exam Syllabus Topics:

H3CSE-RS-NSO Sample Questions:

Question 1

下列关于 LR 的说法不正确的是

A. 是一种主动的流量调节措施,限制了从一个端口发往下边报文的总速率
B. 位于网络盘,对从该接口外出的所有报文均能生效
C. 使用令牌桶算法对流量进行测量,将超出承诺速率的报文重新送入队列进行缓存,减少了整体丢包率,平滑了流量,引入了额外的延迟
D. 对非 IP 报文不能生效

Question 2

MPCP 协议定义的控制消息中,由 ONU 发出的是

A. Reporter
B. Reporter ALXK
C. GATE
D. Reporter Req
E. Report

Question 3

以下关于 QoS 作用抖动描述,正确的是

A. 尽力避免网络拥塞
B. 支撑网络中的实时业务
C. 调控 IP 网络流量
D. QoS 可以创造宽带,使宽带的使用更加合理

Question 4

对于畸形报文防御说法正确的有。

A. 针对 ping of death 攻击,可以通过检测 Ping 请求报文的长度是否超过 65536 字节来辨别是否为攻击报文,若长度超过 65536 字节,则直接丢弃该报文
B. 针对畸形 TCP 报文攻击,可以通过判断 TCP 报文标志位来判断报文是否为攻击报文,对于 6 个标志位全为 1 或 6 个标志位全为 0 或 SN 和 FIN 为同时为 1 的报文直接丢弃
C. 畸形报文攻击需要对每一种攻击进行针对性防御
D. 针对 Teardrop 类的攻击,可以通过缓存分片信息,每一个源、目的 IP 、报文 ID 相同的构成一组,最大缓存 10000 组,在缓存数据达到最大时,直接丢弃分片,同时根据缓存的分片信息,分析 IP 报文分段的合法性,直接丢弃不合法的 IP 报文的方式来抵御攻击

Question 5

xz 公司要求依据模块化企业网架构构建其网络。 Z 公司在深圳和西安备有 1 个研发基地,在北京和上海备有一座办公大楼；在 23 个省会城市拥有超过 50 人的办事处；在 200 个中小城市拥有不超过 8 人的小型办公室,任意时刻通常都有超过 200 名市场和技术人员在外出差。 Z 公司严格禁止员工利用公司网络访问与工作无关的网站。
根据这些情况, Z 公司应具备的网络模块是。

A. Internet 接入
B. 专线 / 分组交换接入
C. 大型分支机构网
D. 远程 / 分布式办公网

Solutions: