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
专升本
Clifford Stoll ran a computer system in Berkeley, California. As a system administrator , he kept a close eye on the records. On
Clifford Stoll ran a computer system in Berkeley, California. As a system administrator , he kept a close eye on the records. On
admin
2015-10-30
92
问题
Clifford Stoll ran a computer system in Berkeley, California. As a system administrator , he kept a close eye on the records. One day, Stoll found something strange in the payment record. There was a 75 cents mistake. One of the thousands of users had used the system for 75 cents worth of time and not paid for it.
It might sound like very little money to worry about.
But that 75 cents was the first clue Stoll had to a much bigger problem—that a hacker had broken into Stoll’s computer system.
Who was it? Stoll spent the next year trying to find out. During that time the hacker used the system in Berkeley as a starting point to break into military computer systems all over the United States.
Stoll had to keep track of the hacker’ s activities on the computer without the hacker’ s knowing someone was watching him. Stoll even made up huge files of false information so the hacker would have lots to read. When the hacker spent long time reading, the telephone company was able to trace the lines. After a year, the hacker was traced back to his computer—in Germany. He was later caught by the German police.
The 75 cents mistake______.
选项
A、was a sign that someone had broken into Stoll’s system
B、would cause serious health problems
C、would make Stoll a very rich man
D、was found out by a Berkeley student
答案
A
解析
文章第二段第二句告诉我们,这75美分是斯托发现重大问题——一位黑客闯入了计算机系统的第一个线索。
转载请注明原文地址:https://kaotiyun.com/show/aAYC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Weareinterestedintheweatherbecauseit【21】ussodirectly—whatwewear,【22】wedo,andevenhowwefeel.Geographers,however
WhileIwaswaitingforher,Ikilledtime______lookingintheshowwindows.
Americansareproudoftheirvarietyandindividuality,yettheyloveandrespectfewthingsmorethanauniform,whetheritis
Americansareproudoftheirvarietyandindividuality,yettheyloveandrespectfewthingsmorethanauniform,whetheritis
Acomputercompanyhasaspecialpersonwhoanswersallquestionsthataresenttohim.Thepersonisa63yearoldman.Heisk
ThehomecomputerindustryhasbeengrowingrapidlyintheUnitedStatesinthelasttenyears.Computersusedtobelarge,expe
IwouldneverhavebelieveditwaspossibleifI______itwithmyowneyes.
WhenIbeganreadingCatch-22,Ithoughtitwasafarcicalsatireonlifeinthe’UnitedStatesArmyAirForce.LaterIbelieved
WhenIbeganreadingCatch-22,Ithoughtitwasafarcicalsatireonlifeinthe’UnitedStatesArmyAirForce.LaterIbelieved
随机试题
下列不符合结节性甲状腺肿的超声表现是
病理性胎黄所指哪项是错误的:
决定漂白粉消毒效果的因素是()
失荣初期治疗的主方是肉瘤治疗的主方是
()主要包括产品开发计划、产品种类、产品规模等内容。
()关注于人际关系,它使团队成员们紧密结合,使大家能继续相处甚至获得某种乐趣。(2007年5月三级真题)
《平凡的世界》:路遥
Earthwormsoccur______adequatemoistureandfoodandthenecessarysoilconditionsarefound.
Theauthorofthereportiswell______withtheproblemsinthehospitalbecausehehasbeenworkingthereformanyyears.
过直线的平面方程是________
最新回复
(
0
)