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  3. 资料：Acknowledging that so-called cloud co

资料：Acknowledging that so-called cloud co

练习题库2022-08-02  20
问题 资料：Acknowledging that so-called cloud computing will blur the distinctions between computers and networks, about two dozen big information technology companies plan to announce a new standards-setting group for computer networking. The group, to be called the Open Networking Foundation, hopes to help standardize a set of technologies pioneered at Stanford and the University of California, Berkeley, and meant to make small and large networks programmable in much the same way that individual computers are.　　The changes, if widely adopted, would have implications for global telecommunications networks and large corporate data centers, but also for small household networks. The benefits, proponents say, would be more flexible and secure networks that are less likely to suffer from congestion. Someday, they say, networks might even be less expensive to build and operate. The new approach could allow for setting up on-demand "express lanes" for voice and data traffic that is time-sensitive. Or it might let big telecommunications companies, like Verizon or AT&T, use software to combine several fiber optic backbones temporarily for particularly heavy information loads and then have them automatically separate when a data rush hour is over. For households, the new capabilities might let Internet service providers offer remote services like home security or energy control.　　The foundation's organizers also say the new technologies will offer ways to improve computer security and could possibly enhance individual privacy within the e-commerce and social networking markets. Those markets are the fastest-growing uses for computing and network resources. While the new capabilities could be crucial to network engineers, for business users and consumers the changes might be no more noticeable than advances in plumbing, heating and air-conditioning. Everything might work better, but most users would probably not know- or care- why or how.　　The members of the Open Networking Foundation will include Broadcom, Brocade, Ciena, Cisco, Citrix, Dell, Deutsche Telekom, Ericsson, Facebook, Force10, Google, Hewlett-Packard, I.B.M., Juniper, Marvell, Microsoft, NEC, Netgear, NTT, Riverbed Technology, Verizon, VMWare and Yahoo. "This answers a question that the entire industry has had, and that is how do you provide owners and operators of large networks with the flexibility of control that they want in a standardized fashion." said Nick McKeown, a professor of electrical engineering and computer science at Stanford, where his and colleagues' work forms part of the technical underpinnings, called OpenFlow.　　 The effort is a departure from the traditional way the Internet works. As designed by military and academic experts in the 1960s, the Internet has been based on interconnected computers that send and receive packets of data, paying little heed to the content and making few distinctions among the various types of senders and receivers of information. The intelligence in the original Internet was meant to reside largely at the end points of the network-the computers-while the specialized routing computers were relatively dumb post offices of various size, mainly confined to reading addresses and transferring packets of data to adjacent systems. But these days, when cloud computing means a lot of the information is stored and processed on computers out on the network, there is growing need for more intelligent control systems to orchestrate the behavior of thousands of routing machines. It will make it possible, for example, for managers of large networks to program their network to prioritize certain types of data, perhaps to ensure quality of service or to add security to certain portions of a network. The designers argue that because OpenFlow should open up hardware and software systems that control the flow of Internet data packets, systems that have been closed and proprietary, it will cause a new round of innovation focused principally upon the vast computing systems known as cloud computers.　　It can be inferred from the passage that____A.The open networking foundation will be led by Stanford and the university of California, Berkeley.B.With the setting of new standards, operators of large networks will have more flexibility of control.C.People will have a better understanding of the distinctions between computers and networks thanks to cloud computing.D.Cloud computing will involve more routing computers than the traditional internet.
选项 A.The open networking foundation will be led by Stanford and the university of California, Berkeley.
B.With the setting of new standards, operators of large networks will have more flexibility of control.
C.People will have a better understanding of the distinctions between computers and networks thanks to cloud computing.
D.Cloud computing will involve more routing computers than the traditional internet.
答案 B
解析 本题的问题是“可以从文中推断出_____。”选项A意为“开放式网络基金会将由斯坦福大学和加州大学伯克利分校领导”；选项B意为“随着新标准的制定，大型网络的运营商将具有更大的控制灵活性”；选项C意为“由于云计算，人们将更好地理解计算机和网络之间的区别”；选项D意为“云计算将涉及比传统互联网更多的路由计算机”。根据主题句可知，开放网络基金会只是帮助这两所大学开创技术标准化，并未提及是由他们领导，故选项A错误；用户其实并不知道也不关心这些新技术功能，因而对于计算机和网络理解并未增加，故选项C错误；云计算需要智能控制系统协调路由机器运行，但是未提及路由机器比传统互联网更多，故选项D错误。根据题意，这些新技术回答了整个行业都面临的问题，那么我们可以推断，通过新标准，有望使大型网络的所有者和运营商操控上更加灵活，因此A、C、D选项均是不正确的，故选B。
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