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."
At the end of the article, the author seems to suggest ______.
选项
A、there is no solution to the flaw in the Internet technology
B、there is much worry within the academic circle about Internet security
C、US government is indifferent to the hacker attacks
D、Internet traffic is easily vulnerable to hack attacks
答案
D
解析
本题为细节归纳题。据第12段第2句可排除C。A与B都没有原文的支持。据最后1段最后1句可进一步确定D。
转载请注明原文地址:https://kaotiyun.com/show/c1qO777K
0
专业英语八级
相关试题推荐
Mostofusaretaughttopayattentiontowhatissaid—thewords.Wordsdoprovideuswithsomeinformation,butmeaningsarede
A、Itrequiresimaginationinlearningalanguage.B、Ittakestimeandefforttolearnalanguage.C、Theculturaldifferencesare
AstheOccupyWallStreetprotestentersitsthirdweek,demonstratorsaremakingincreasinglycreativeplacardstoensuretheir
A、LightEngineer.B、PersonnelManager.C、ChemistryAnalyst.D、NewsEditor.B
Inthesummerof2010,record-hightemperatureshitMoscow.Atfirstitwasjustanother【C1】______butthescorchingheatthats
A、Herpastmistakes.B、Herpreviousemployer.C、Herpresentboss.D、Hersubordinatecolleagues.A
IusedtoboastthatBritainwasarelativelyuncorruptsociety.LookatFrance,Iwouldsay,whereahighproportionofrecent
PeoplelivingonpartsofthesouthcoastofEnglandfaceaseriousproblem.In1993,theownersofalargehotelandofseveral
BesidesFrenchwords,Englishalsoabsorbedasmanyas2,500wordsof_____intheMiddleEnglishperiod.
A、Ifhehadn’tbeenonsickleaveB、Ifhehadn’tcontinuedmakingexcessiveordersC、Ifhehadn’tbeenMrLawton’sbrother-in-la
随机试题
女性,49岁,因下腹不适,腰骶部疼痛,伴多量白带。诊断为“颗粒型重度糜烂”前来就诊。正确的处理是
引起心源性晕厥的常见心血管系统的病因不包括
A.钩端螺旋体 B.沙眼衣原体 C.产气荚膜梭菌 D.大肠埃希菌 E.结核分枝杆菌能通过除菌滤器的是
用于痰湿阻滞经络所致肢体关节疼痛、麻木、阴疽流注,宜选用的药物是()用于湿热痹阻经络所致肢体、关节红肿疼痛、屈伸不利,宜选用的药物是()
尿毒症病人高血压最主要的原因是
当事人的()即是要约邀请。
公民、法人或其他组织因不可抗力或其他特殊情况耽误法定期限而向人民法院申请延长期限的,必须在障碍消除后的多长时间内提出()。
简述组织文化的形成过程。
Wouldyoumindkeepinga(n)______onthehouseforuswhileweareaway?
Notonly______thefalloftheczar,butitalsodestroyedtheprovisionalgovernment.
最新回复
(
0
)