首页
登录
职称英语
To say that cheats never prosper is to elevate hope over experience. Modern
To say that cheats never prosper is to elevate hope over experience. Modern
游客
2023-08-29
55
管理
问题
To say that cheats never prosper is to elevate hope over experience. Modern technology, in the form of miniature cameras, smart phones and the Internet, means stealing answers and sharing them has never been easier. Indeed, the problem has got very bad. However, technology allows cheats to be detected more easily than before. An arms race has thus developed between cheats and exam setters.
Data-forensics (鉴定)software, developed by exam-setting firms like Prometric, of Baltimore, Maryland, and Caveon, of Midvale, Utah, detects cheating by calculating the probabilities of particular patterns of answers being honest. This software exploits the relentless logic of combinatorial statistics. A correct answer is a correct answer, of course, but unless a candidate answers all questions correctly (itself an event that might at least raise suspicions), the mix of right and wrong answers provides information that can point to collaboration. If two candidates’ patterns of answers are similar or identical, warning flags go up. If more than two, hanky-panky (作弊)is a rising certainty.
In tests where the candidate is allowed to change his mind about an answer, the pattern of changes also provides information. Several candidates making the same change is suspicious. So is a case where all changes are from wrong to right.
Sudden improvements in scores by an individual candidate, compared with previous attempts, also raise an electronic eyebrow—particularly if the new result is from a different exam hall. Crossing an international border to take a test is suspicious, too, and doubly so if it is from a place generally reckoned clean to one generally reckoned corrupt. American candidates who fly all the way to, say, India, for their exams may thus find themselves with some explaining to do.
A company called Kryterion scrutinises matters even more closely than that. Kryterion administers its tests online, and the invigilators (监考官)sit at its headquarters in Phoenix, Arizona, watching test-takers around the world through webcams and never meeting them in person. The opportunities for envelopes stuffed with banknotes to change hands are thus minimised. Software that recognises facial features and keystroke rhythms stops candidates being impersonated by professional exam sitters. Remote computers are "locked down" with security software, to prevent unauthorised windows from being opened. Invigilators warn or disqualify test-takers whose eyes or hands wander in suspicious ways. And the software also alerts them if difficult questions are being answered suspiciously quickly, or if two test-takers’ answers match too closely for comfort. [br] Candidates stand no chance of being impersonated because software can recognise______.
选项
答案
facial features and keystroke rhythms
解析
同义转述题。本题考查软件如何防止考生找人替考。由定位句可知,通过识别考生脸部特征和敲键盘节奏的软件阻止了考生找“枪手”替考的作弊行为。换句话说,因为软件能够识别考生脸部特征和敲键盘节奏,从而使考生没有机会找人替考,故答案为facial features and keystroke rhythms。
转载请注明原文地址:https://tihaiku.com/zcyy/2966756.html
相关试题推荐
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
Modernlifeisstressful.Thenoiseandthefastpaceofthecitytaketheir
TheMostImportantSkillsforModernPeople1.随着科技的发展.现代人的技能也随之变化2.有人认为外语、计算机等技
Theymayappeartobemarvelsofmodernscience.Buttheideasthatledtot
Theymayappeartobemarvelsofmodernscience.Buttheideasthatledtot
Theymayappeartobemarvelsofmodernscience.Buttheideasthatledtot
随机试题
AftertheGloriousRevolution______wasestablishedinBritain.A、FeudalismandAr
(1)ThismonthSingaporepassedabillthatwouldgivelegalteethtothemor
Oneofthebiggestchallengesfacingemployersandeducatorstoday【C1】______
患者女性,40岁。右侧乳晕区1点钟位近乳头处可触及小肿物,约黄豆大小,质中,界线
问头痛、头晕
20、在光纤回路工作时,应采取相应防护措施防止激光对()造成伤害。
我国目前的危险废物基本(),只有几个城市在建危险废物填埋场。A.焚化 B.
从态度的成分看,转变态度之所以困难,主要在于( )的影响。A.认知成分 B
口腔颌面部感染的病原菌最多见的是A.葡萄球菌感染 B.链球菌感染 C.梭杆菌
施工招标工作实际完成情况见下表所示。 【问题】指出该工程施工招标投标实际工
最新回复
(
0
)