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
In computing, passwords are commonly used to limit access to official users. Yet the widespread use of passwords has serious dra
In computing, passwords are commonly used to limit access to official users. Yet the widespread use of passwords has serious dra
admin
2010-01-17
61
问题
In computing, passwords are commonly used to limit access to official users. Yet the widespread use of passwords has serious drawbacks. Office workers now have to remember an average of twelve system passwords. In theory they should use different passwords for each site, but in reality these would be impossible to remember, so many people use the same password for all.
An additional problem is that the majority use simple words such as "hello", or names of family members, instead of more secure combinations of numbers and letters, such as 6ANV76Y. This permits computer hackers to download dictionaries and quickly find the word that allows them access.
When system users forget their passwords there is extra expense in supplying new ones, while if people are forced to change passwords frequently they often write them down, making systems even less secure. Therefore, it is clear that the idea of passwords, which have been used as security devices for thousands of years, may need rethinking.
One possible alternative has been developed by the American firm Real User, and is called "passfaces". In order to access the system a worker has to select a series of photographs of faces from a randomly (随机地) generated sequence. If the pictures are selected in the correct order, access is granted. This concept depends on the human ability to recognize and remember a huge number of different faces, and the advantage is that such a sequence cannot be told to anyone or written down, so is more secure. It is claimed that the picture sequence, which used photographs of university students, is easier to remember than passwords, and it has now been adopted for the United States Senate.
One advantage of "Passfaces" over a password is that ______.
选项
A、it is easier to remember
B、it is more complicated
C、it takes less time to log in
D、it allows one to write less
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/eAYi777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
“三权分立"作为一种学说,最早是由()提出的。
Thepassagefocuseson______.Inthesecondparagraphtheword"paramagnetic"means______.
Thepassageismainlyconcernedwiththe______.Itcanbeinferredfromthepassagethatthemimosaiscalledthesensitivepl
ThewriterthinksthattheU.S.government’sdefinitionofthehomelessreveals______.Peoplebecomehomelessforallthefoll
Manypeoplecomplainoftherapid______ofmodernlife.
KimberlyRughtalkedaboutherson’sbirthdayparty______.Whatisthepassagemainlyabout?
Onanaverageofsixtimesaday,adoctorinHollandpractices"active"euthanasia:intentionallyadministeringalethal(致死的)d
Humanbeingsareanimals.Webreathe,eatanddigest,andreproducethesamelife【B1】commontoallanimals.Inabiologicallabo
Twomaintechniqueshavebeenusedfortrainingelephants,whichwemaycallrespectivelythetoughandthegentle.Theformerm
TheXinhuabookstorechain,China’slargestofficialpublishingenterprise,hasbecomeasurprisingflashpointforinterestamo
随机试题
自然派
可用阴阳互根互用关系说明的有
下列哪种疾病触诊语颤消失
乙型脑炎病毒下列哪项描述不正确
按照《建设项目环境保护管理条例》的规定,建设单位应当在( )报批环评文件。
某商品原报单价为:CIFC2%NewYorkUSD3000/MT,外商要求将佣金率提高至5%,在保持我方净收入不变的情况下,应如何报价?(保留两位小数)
我国政府明令禁止进口的货物包括:列入由国务院对外贸易主管部门或由其会同国务院有关部门制定的《禁止进口货物目录》的商品和国家有关法律、法规明令禁止进口的商品以及其他各种原因停止进口的商品。请指出以下哪些属于国家禁止进口的货物:
公民、法人和其他组织对()不服,不能申请劳动保障行政复议。
体内有性质明确、部位具体的异常知觉,属于()。
Justlikechildren,deeroftencrossBritishroadstogettotheotherside.Butthecostisthedeer’slife.Atnight,【S1】____
最新回复
(
0
)