2. 计算机
  3. While the Internet is inherently insecure, businesses still need to preserve the privacy of data as it travels over the network.

While the Internet is inherently insecure, businesses still need to preserve the privacy of data as it travels over the network.

admin2009-02-15  72
问题 While the Internet is inherently insecure, businesses still need to preserve the privacy of data as it travels over the network. To help do that, the Internet Engineering Task Force an international group of network designers, operators, vendors, and researchers concerned with the evolution of(71)has developed a suite of(72)called Internet Protocol Security(IPSec).
   IPSec creates a standard platform to develop secure networks and electronic(73)between two machines. Secure tunneling via IPSec creates(74)connections in a network through which data packets can move. It creates these tunnels between remote users and within a local network. It also(75)each data packet in a new packet that contains the information neccessary to set up, maintain and tear down the tunnel when it’s no longer needed.
选项 A、supports
B、drives
C、encapsulates
D、transmits
答案A
解析 因特网不安全是固有的，而工商界仍需要数据在因特网上传输时保留其隐私性。为有助于做到这点，因特网工程任务组(由与因特网体系结构的发展有关的网络设计人员、运行商、供应商和研究人员组成的国际团体)已开发了一整套称为因特网协议安全(IPSec)的协议。
   IPSec生成一个标准平台，来开发安全网络和两台机器之间的电子隧道。通过IPSec的安全隧道，在数据包可以传送的网络中生成像电路那样的连接。IPSec在远地用户之间和在本地网中生成这样的隧道，它也把每个数据包封装在一个新的包中，该新包包含了建立、维持和不再需要时拆掉隧道所必需的信息。
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