NO.85173

VPN connections allow users working at home or on the road to connect in a secure fashion to a （） corporate server using the routing infrastructure provided by a public internetwork (such as the Internet). From the user's perspective, the VPN connection is a point-to-point connection between the user's computer and a corporate （）. The nature of the （） internetwork is irrelevant to the user because it appears as if the data is being sent over a dedicated （） link. VPN technology also allows a corporation to connect to branch offices or to other companies over a public internetwork, while maintaining secure （）. The VPN connection across the Internet logically operates as a wide area network link between the sites.

第 1 问

A. customer

B. network

C. remote

D. local

第 2 问

A. router

B. client

C. host

D. server

第 3 问

A. medium

B. intermediate

C. remote

D. local

第 4 问

A. network

B. private

C. public

D. local

第 5 问

A. technology

B. server

C. host

D. communications

参考答案: C D B B D

详细解析:

VPN连接可以使用户在家中或在路途上以安全的方式连接到远端的公司服务器上，而这是通过使用公共互联网(例如因特网)提供的可路由的网络基础结构实现的。从用户的观点上看，VPN连接是用户计算机与公司服务器之间的点对点连接。中间互联网的性质与用户是无关的，因为它表现得就像数据通过一条专用的私有链路传送一样。VPN技术也允许公司通过公共互联网连接到其分部办公室或连接到其他公司，而且维持安全通信。跨越因特网的VPN连接的运作逻辑上就像不同地点之间的广域网络链路一样。