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H3C GB0-372 Exam Syllabus Topics:

H3CSE-RS-SW Sample Questions:

1. SDN 网络对协议报文的处理方式分为哪几类 ? （选择一项或多项)

A) 将协议报文送至本设备 CPU 处理
B) 将协议报文送至云平台处理
C) 转发至网络中其他设备来处理协议报文
D) 协议报文上送至 SDN 控制器处理

2. SSH 协议作为 - 种安全的远程登录协议,被广泛应用,关于 SSH 正确的是

A) SSH 还可以为 FTP 提供安全的传输通道
B) SSH 采用额外的加密技术确保登录安全性
C) SSH 及 Secure Shell ,可以采用 DES 认证方式保证数据的安全性
D) SSH 采用 TCP 端口 22 传输数据,端口 23 建立连接

3. 关于环路保护,以下说法正确的有

A) 根端口的角色如果发生变化就会变为 Discarding 状态,不转发报文,从而不会在网络中形成环路 Discarding 状态会 - 直维持,直到端口再次收到 BPDU ,重新成为根端口
B) 链路阻塞或链路单通可能会导致环路产生
C) 在 MSTP 中,此功能对根端口、 Alternate 端口和 Backup 端口有效
D) 在启动了环路保护功能后,当端口保存的 BPDU 老化时,环路保护生效

4. 客户局域网交换机 SWA 、 SWB 、 SWC 上构成 RRPP 环主环 1 ,从上述信息可以得知

A) 如果交换机 SWB 为传输节点,处于 Preforwarding 状态时,在规定时间内收不到主节点发来的 Complete-Flush-FDB 报文,自行放开临时阻塞端口
B) 如果交换机 SWA 为主节点, Failed 状态下发送 Common-Flush-FDB 报文通知所有传输节点刷新 FDB
C) 如果交换机 SWB 为传输节点,处于 Preforwarding 状态时,在规定时间内收不到主节点发来的 Common-Flush-FDB 报文,自行放开临时阻塞端口

5. SSH 作为安全的远程登录协议,采用了先进的加密算法来确保其文件传输的安全性, SSH 客户端与服务器通讯的时候,会对如下哪些内容进行加密 ? （选择 - 项或多项)

A) 登录密码
B) 传输数据
C) 登录用户名
D) 只对用户名和密码加密

Solutions: