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
考研
Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for
Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for
admin
2009-04-27
43
问题
Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for exchanging data over networks, what would ultimately become the Internet remains a work in progress.
University researchers are experimenting with ways to increase its capacity and speed. Programmers are trying to imbue Web pages with intelligence. And work is underway to re-engineer the net-work to reduce spam and security troubles.
(46)
All the while threats loom: critics ware that commercial, legal and political pressures could hinder the types of innovations that made the Internet what it is today.
Stephen Crocker and Vinton Cerf were among the graduate students who joined UCLA professor Len Kleinrock in an engineering lab on Sept. 2, 1969, as bits of meaningless test data flowed silently between the two computers. By January, three other "nodes" joined the fledgling network.
(47)
Then came e-mail a few years later, a core communications agreement called TCP/IP in the late 70s, the domain name system in the 80s and the World Wide Web—now the second most popular application behind e-mail—in 1990.
The Internet expanded beyond its initial military and educational domain into businesses and homes around the world.
Today, Crocker continues work on the Internet, designing better tools for collaboration. (48)
And as security chairman for the Internet’s key oversight body, he is trying to defend the core addressing system from outside threats.
He acknowledges the Internet he helped build is far from finished, and changes are in store to meet growing demands for multimedia. (49)
Network providers now make only "best efforts" at delivering data packets, and Crocker said better guarantees are needed to prevent the skips and unexpected pauses now common with video.
Cerf, now at MCI Inc., said he wished he could have designed the Internet with security built-in. Microsoft Corp., Yahoo Inc. and America Online Inc., among others, are currently trying to retrofit the network so e-mail senders can be authenticated—a way to cut clown on junk messages sent using spoofed addresses.
(50)
Many features being developed today wouldn’t have been possible at birth given the slower computing speeds and narrower Internet pipes, or bandwidth, Cerf said.
选项
答案
作为因特网主要监督机构的安全主席,他正在尝试保护核心地址系统不受外界威胁。
解析
本句为简单句,为主谓结构he is trying…;不定式短语to defend the core addressing system from outside threats是目的状语;介词短语as security chairman for the Internet’s key oversight body是全句状语。本句结构简单,句子不长,直接翻译即可。句中oversight意为"监督",这里oversight body指"监督机构"。
转载请注明原文地址:https://jikaoti.com/ti/qxURFFFM
0
考研英语一
相关试题推荐
Dieting,accordingtoanoldjoke,maynotactuallymakeyoulivelonger,butitsurefeelsthatway.Nevertheless,evidencehas
IsitanywonderthatAmericaisalsoacountryofdangerouslyoverweightpeople?AccordingtoarecentstudybytheNational
Whenoneofhisemployeesphonedinsicklastyear,ScottMcDonald,CEOofMonumentSecurityinSacramento,California.,decided
Icametofeminismthewaysomepeoplecometosocialmovementsintheirearlyyears:outofself-interest.Igotontheequalit
Icametofeminismthewaysomepeoplecometosocialmovementsintheirearlyyears:outofself-interest.Igotontheequalit
Thedestructionofournaturalresourcesandcontaminationofourfoodsupplycontinuetooccur,largelybecauseoftheextreme
【C1】______jobapplicationstoeliminatediscriminationisnoteasy.Tenbigemployersinthepublicandprivatesectors—includin
【C1】______jobapplicationstoeliminatediscriminationisnoteasy.Tenbigemployersinthepublicandprivatesectors—includin
AnonymityisnotsomethingwhichwasinventedwiththeInternet.Anonymityandpseudonymityhasoccurredthroughouthistory.For
SupposeyouareapplyingforaninternpositioninanITcompanyfornextterm.You’rewritinganemail,sendingyourresume(C
随机试题
常用金属材料有黑色铸铁和有色金属。()
骨盆底形态学特征正确的是
确诊禽流感的方法为
在采购材料过程中支付的各项采购费用,均应记人“管理费用”账户。()
证监会对甲上市公司高管采取市场禁入措施,则该高管在禁入期不得担任以下职务()。Ⅰ.甲上市公司的财务总监Ⅱ.为上市公司出具审计报告的注册会计师Ⅲ.投行人员Ⅳ.非上市股份公司的财务总监
根据行为金融学理论,投资者所具有的避免“后悔”心理特征会导致()。
行政复议当事人的权利有()。
()是指最先的印象对人的知觉所产生的强烈影响。(2007年11月三级真题)
为了提高公民(身体)素质.开辟了一条20公里的徒步路线,取得了很好的反响,领导决定再加开五条。让你负责路线的选取工作.如何开展?
设则y’=_____.
最新回复
(
0
)