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  3. The government’s new cyber-security officials yesterday asked telecommunications companies for help in building a government com

The government’s new cyber-security officials yesterday asked telecommunications companies for help in building a government com

admin2012-06-10  74
问题     The government’s new cyber-security officials yesterday asked telecommunications companies for help in building a government computer network that would have "no risk of outside penetration" — a task some computer security consultants say is nearly impossible. Plans for the private network, called Govnet, hinge on whether a reliable network infrastructure can be built at an affordable price, officials said. Computer system consultants said they could not estimate how much the network would cost because of the government’s enormous size and security needs. Richard Clarke, who was appointed special adviser to the president for cyberspace security this week, said he believes a more reliable system can be built. Ninety percent of available fiber-optic space is unused and fairly inexpensive to obtain, he said.
    Govnet is part of a plan Clarke announced earlier this week "to secure our cyberspace from a range of possible threats, from hackers to criminals to terrorist groups, to foreign nations, which might use cyber-war against us in the future". Govnet would be completely independent from the Internet to help keep out hackers and viruses, according to the government’s plan. The request from the General Services Administration asks that telecommunications companies submit proposals about how the network could be built, how much it would cost, and how long it would take to construct.
    This year, the current network has been breached by hackers, computer worms and viruses. The system was also roughed up by the "Code Red" computer worm and an attack program called "I Love You". The viruses affected thousands of government computers. Last year a report by the General Accounting Office, an internal government watchdog, found weaknesses in the computer network that could allow terrorists or hackers to " severely damage or disrupt national defense or vital public operations or steal sensitive data". Clarke said the government’s current virtual private network is vulnerable to viruses and denial of service attacks that Govnet would make more difficult to execute.
    An internal network, such as the Govnet proposal, is worth investigating but will probably fall to sophisticated hackers, said Amit Yoran, chief executive of the security-services company Riptech Inc. and a former information-security program director at the Defense Department. "It is probably more feasible to implement and strongly enforce global security postures and practices rather than go out and purchase new assets, " Yoran said. "Once someone is able to get in, they will find a weak link. When you have a network the size of the government’s there will be weak links. Someone will get in. "
What Amit Yoran said amounts to denying
选项 A、the feasibility of building a security program.
B、the efficiency of the present network in countering outside attacks.
C、the conceived security of Govnet.
D、the possibility of enhancing the security of the government network.
答案C
解析 最后一段中Amit Yoran谈到：像Govnet这样的内部网络值得研究，但是可能阻挡不了黑客高手。与其购买一套新设施，还不如实施并加强全球安全状况。一旦有人能进入(Govnet)，他们就会找到薄弱环节。像政府这么大的网络总会有一些薄弱环节，因此，总会有人进入。由此可见，他意指：即使能建立这样的网络系统(Govnet)，也不一定安全，故答案为[C]。
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