首页
登录
职称英语
[originaltext] What is the difference between a computer virus and a compute
[originaltext] What is the difference between a computer virus and a compute
游客
2024-05-20
5
管理
问题
What is the difference between a computer virus and a computer worm? Both can infect and damage computer systems. However, computer viruses and computer worms differ in the way they reproduce and spread. A virus, which is short for "vital information resources under siege", is a program or code that secretly enters a computer by piggybacking on e-mail messages, files, or programs shared between two different computer systems. Then the virus infects its new host by attaching itself to the files within that computer and deleting or changing them or even overwriting entire programs. Just like a biological virus in the human body, a computer virus replicates itself so that it will continue to be contagious when data is shared with another computer system. In 2000, for example, the famous "Love Bug" virus, which traveled via e-mail messages, destroyed files in computers all over the world. Worms, too, are malicious programs that reproduce and spread. But unlike viruses, they do not need to attach themselves to other files. They are programs that run independently and spread on their own through computer networks. Thus they do not require human intervention to make their way from one computer to another. The famous Internet worm of 1988, for example, copied itself across the Internet, destroying many computer systems as it went. Currently, computer analysts are worried about the Sasser worm, which disabled computers in Britain, South Africa, and Taiwan.
Questions 29 to 31 are based on the passage you have just heard.
29. In what aspect do computer viruses and computer worms differ?
30. What can we learn about the "Love Bug" virus from the passage?
31. Which of the following statements is true about computer worms?
选项
A、The degree they disrupt the computer.
B、The way they reproduce and spread.
C、The space they occupy on the Internet.
D、The target they mainly attack.
答案
B
解析
选项中的The degree they disrupt,The way they reproduce,The space they occupy等表明,本题可能与鉴别they的标准有关,听音时注意they指代什么。短文开头提到,However, computer viruses and computer worms differ in the way they reproduce and spread,由此可知,答案为[B]。
转载请注明原文地址:https://tihaiku.com/zcyy/3602879.html
相关试题推荐
[originaltext]M:Goodmorning,Ms.Smith.Welcometotoday’sshow.W:Thankyou
[originaltext]W:IfIunderstandyoucorrectly,Mr.Savage,youweredrivingwe
[originaltext]M:HiMelissa!Welcomeback!DidyouhaveagoodtimeinPeru?W:
[originaltext]M:HiMelissa!Welcomeback!DidyouhaveagoodtimeinPeru?W:
[originaltext]M:HiMelissa!Welcomeback!DidyouhaveagoodtimeinPeru?W:
[originaltext]W:Ireallyhopetheviewfromthebalconyisgood.M:Noproblem
[originaltext]W:Ireallyhopetheviewfromthebalconyisgood.M:Noproblem
[originaltext]W:Ireallyhopetheviewfromthebalconyisgood.M:Noproblem
[originaltext]W:Ireallyhopetheviewfromthebalconyisgood.M:Noproblem
[originaltext]W:Ireallyhopetheviewfromthebalconyisgood.M:Noproblem
随机试题
[originaltext]M:HowdoyoulikeProfessorBookman’scourseontheHistoryofP
Asamatteroffact,whenallalanguagetakesfromanotheroneismerewords
Whichofthefollowingitalicizedpartsindicatesarelationshipoflinkingverb
信息检索的基本原理包括( )。A.信息资源重组 B.信息资源集合 C.信息
出版物宣传文字包括( )等。A.审稿意见 B.书刊腰封文字 C.书刊底封文
喷射混凝土预防措施中,混凝土终凝( )后应喷水养生,经常保持其表面湿润,养生不
新建公路的水泥混凝土路面基层的最小厚度一般为()。A.30cm B.50c
患者,女性,40岁,突发腹痛来诊,面色苍白,大汗,BP80/50mmHg,HR1
根据《公路工程标准施工招标文件》,下列各项构成合同文件的有()。2015年A.
慢性肾衰患者易于感染的最主要原因是A.低蛋白血症 B.贫血 C.白细胞数减少
最新回复
(
0
)