首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to
admin
2010-03-25
40
问题
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to an urgent and secretive international effort to prevent global disruptions of Web surfing, e-mails and instant messages.
2 The British government announced the vulnerability in core Internet technology on Tuesday. Left unaddressed, experts said, it could allow hackers to knock computers offline and broadly disrupt vital traffic-directing devices, called routers, that coordinate the flow of data among distant groups of computers.
3 "Exploitation of this vulnerability could have affected the glue that holds the Internet together," said Roger Cumming, director for England’s National Infrastructure Security Coordination Centre.
4 The Homeland Security Department issued its own cyberalert hours later that attacks "could affect a large segment of the Internet community." It said normal Internet operations probably would resume after such attacks stopped. Experts said there were no reports of attacks using this technique.
5 The risk was similar to Internet users "running naked through the jungle, which didn’t matter until somebody released some tigers," said Paul Vixie of the Internet Systems Consortium Inc.
6 "It’s a significant risk," Vixie said. "The larger Internet providers are jumping on this big time. It’s really important this just gets fixed before the bad guys start exploiting it for fun and recognition."
7 The flaw affecting the Internet’s "transmission control protocol," or TCP, was discovered late last year by a computer researcher in Milwaukee. Paul Watson said he identified a method to reliably trick personal computers and routers into shutting down electronic conversations by resetting the machines remotely.
8 Routers continually exchange important updates about the most efficient traffic routes between large networks. Continued successful attacks against routers can cause them to go into a standby mode, known as "dampening," that can persist for hours.
9 Experts previously said such attacks could take between four years and 142 years to succeed because they require guessing a rotating number from roughly 4 billion possible combinations. Watson said he can guess the proper number with as few as four attempts, which can be accomplished within seconds.
10 Cisco Systems Inc., which acknowledged its popular routers were among those vulnerable, distributed software repairs and tips to otherwise protect large corporate customers. There were few steps for home users to take; Microsoft Corp. said it did not believe Windows users were too vulnerable and made no immediate plans to update its software.
11 Using Watson’s technique to attack a computer running Windows "would not be something that would be easy to do," said Steve Lipner, Microsoft’s director for security engineering strategy.
12 Already in recent weeks, some U. S. government agencies and companies operating the most important digital pipelines have fortified their own vulnerable systems because of early warnings communicated by some security organizations. The White House has expressed concerns especially about risks to crucial Internet routers because attacks against them could profoundly disrupt online traffic.
13 "Any flaw to a fundamental protocol would raise significant concern and require significant attention by the folks who run the major infrastructures of the Internet," said Amit Yoran, the government’s cyber security chief. The flaw has dominated discussions since last week among experts in security circles.
14 The public announcement coincides with a presentation Watson expects to make Thursday at an Internet security conference in Vancouver, British Columbia, where Watson said he would disclose full details of his research. Watson predicted that hackers would understand how to begin launching attacks "within five minutes of walking out of that meeting."
"Somebody" in "somebody released some tigers" in Para. 5 refers specifically to ______.
选项
A、Internet providers
B、Internet users
C、routers
D、hackers
答案
D
解析
本题为一般推理题。此外,从上下文可以推知,第5段中的the jungle指the internet。
转载请注明原文地址:https://kaotiyun.com/show/S1qO777K
0
专业英语八级
相关试题推荐
Recentresearchhasclaimedthatanexcessofpositiveionsintheaircanhaveanilleffectonpeople’sphysicalorpsychologi
Recentresearchhasclaimedthatanexcessofpositiveionsintheaircanhaveanilleffectonpeople’sphysicalorpsychologi
Thecaseforcollegehasbeenacceptedwithoutquestionformorethanageneration.Allhighschoolgraduatesoughttogo,says
Thewaywecontactwitheachotherischanging;emailisboththecatalystandinstrumentofthattremendousandsurprisingchan
Wholefamiliesofmusiciansarenotexactlyrare.However,itisunusualtocomeacrossonethatincludesnotonlywritersandp
ManypeoplearesurprisedtolearnthatAntarcticaisnearlytwicethesizeoftheUnitedStates.ThenameAntarcticawascoined
A、Themanhasbeenmakingthecallforsometime.B、Thewomanworkswitha24-hourservice.C、Theengineerwillretrieveallthe
TheMaintenanceofParentsBillWhichofthefollowingstatementsisCORRECT?
A、CrossandLawtonhavecollidedinaswindleB、KeithdoesnotpossessanyevidenceC、CrossispurposelyonsickleaveD、Keithi
Israelisa"powerhouseofagriculturaltechnology",saysAbrahamGorenofElbitImaging(EI),anIsraelimultinational.Thecou
随机试题
商业银行将其对工商企业已经贴现的票据向中央银行再办理贴现的资金融通行为指的是()
患者王某,男,25岁,江苏人。近1个多月来发热、咳嗽、痰中带血,伴胸痛、乏力,前来就诊。问病史,曾多次生食早市的“醉石蟹”。查体:T37.9℃,心脏正常,两肺呼吸音减弱,肝脾不大。实验室检查:白细胞10×109/L,嗜酸性粒细胞16%。X线胸片见肺下部纹
影响照片颗粒性的因素,不包括
移植“增强”效应是指
采用超声法检测混凝土表面损伤层厚度,两个换能器的连线方向应尽量避免与主钢筋方向平行。()
城乡规划的行政法制监督的基本原则不包括()。
某中外合资经营企业的投资总额为1800万美元。在其注册资本中,中方认缴的出资额为500万美元。根据中外合资经营企业法律制度的规定,下列关于外方认缴出资最低限额的表述中,正确的是()。
(2007年卷二第45条)根据《与贸易有关的知识产权协定》关于地理标志的规定,各成员应当为有利害关系的各方提供制止下列哪些行为的法律手段?
某社区社会工作者在“三八妇女节”开展了面向社区妇女的专场招聘会,有380名妇女赶赴招聘会现场,其中203名妇女在当天与企业达成了就业意向。从促进社会就业来看,社会工作者的工作属于()。
You______yesterdayifyouarereallyseriousaboutthejob.
最新回复
(
0
)