Where should mother turn left()
A. Traffic lights
B. At the theater
C. At the cinema
D. At the corner
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Which of the following statement is true()
A. Greetings and introductions are of great importance in US culture
B. People needn’t pay too much attention to greetings and introductions
C. Introducing oneself is more commonly used than being introduced to others
D. People needn’t introduce others on many occation
Why didn’t mother turn right at the first turning()
A. Because the road was being reconstructed
Because it was a one-way street
C. Because there was a traffic jam there
D. Because there was a traffic accident
下列哪种说法正确描述了 Cisco Catalyst 2960 交换机的特征()
A. 它们不支持 IOS 版本早于 15.x 的活动交换虚拟接口 (SVI)
B. 它们最适合用作分布层交换机
C. 它们是模块化交换机
D. 新型 Cisco Catalyst 2960-C 交换机支持 PoE 透传
网络公司的客户需要为经常出差的员工提供 VPN 连接。为支持 VPN 服务器,必须将客户的路由器升级到带有高级 IP 服务功能集的新版本 Cisco IOS 软件。现场工程师在将新 IOS 复制到路由器之前应该进行什么操作()
A. 设置路由器,使其在下次启动时支持从 TFTP 服务器加载新的 IOS 映像文件
B. 使用 erase flash: 命令删除当前安装的 IOS,然后重新加载路由器
C. 发出 show running-config 命令,查看当前安装的 IOS 映像文件的功能
D. 发出 show version 和 show flash 命令以确保路由器具有足够的存储器和文件空间容纳新的 IOS 映像