《计算机专业英语》第13章在线测试

更新时间:2023-06-25 18:55:21 阅读: 评论:0

《计算机专业英语》第13章在线测试
剩余时间:
59:53
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长故事
 答题须知:1、本卷满分20分。
          2、答完题后,请一定要单击下面的“交卷”按钮交卷,否则无法记录本试卷的成绩。
          3、在交卷之前,不要刷新本网页,否则你的答题结果将会被清空。
第一题、单项选择题(每题1分,5道题共5分)
世界500强企业
 1Confidentiality of the message is not enough in a cure communication; ________ is also needed. The receiver needs to be sure of the nders identity.
Aencryption
Bauthorization
刘炳森楷书千字文
Cauthentication
Dencapsulation
 2The data, when they are not encrypted, are called ________.
怎么看自己的ip
Aplaintext
Bciphertext
Chypertext
Dcontext
 3A virus is a _________ .
Abeast
Bcomputer
Cbad man
Dprogram
 4Many virus go resident in the memory like a ( ).
A.exe file
B.com file
Ctsr program
Ddata file
 5Now, about ( ) different virus account for all the virus that actually spread in the wild.
A30
B150
C1800
D3000
第二题、多项选择题(每题2分,5道题共10分)
卉字五行属什么
 1Virus all have two phas to their eecution, the ( ) and the ( ).
Ainfection pha
Bdel_ete pha
Cattack pha
Dcreae pha
 2( ) maybe a certain cau that some virus infect upon.
Aa day
Ba time
Can external event on your PC
Da counter within the virus
 3Many virus do harmful things such as ( ).
Adeleting files
Bsimulating typos
Cslowing your PC down
Dchanging random data on your disk
 4If a virus simply reproduce and have no cau for an attack pha, but it will still ( ) without your permission.
Astealing storage
Bpilfer CPU cycles
Cdel_ete files
Dplay music
 5Some virus, with no attack pha, often damage the programs or disks they infect becau they ( ).
Ahave bugs in them
Bcontain poor quality code
C兔妈妈steal storage
Dshow messages on your screen
第三题、判断题(每题1分,5道题共5分)
 1Computer curity is a branch of technology known as information curity as applied to computers.
正确
错误
 2Michelangelo is a file ctor.
外滩广场
正确
错误
 3Computer virus is remote from us.
正确
错误
 4Computer virus may affect the your phisical health .
正确
错误
 5The author thinks that understanding how an attacker approaches your computer system can help you protect it
正确
错误
题记是什么意思 
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