问题 单项选择题

识别风险点、非风险点、敏感点和权衡点是ATAM方法中的关键步骤。已知针对某系统所做的架构设计中,提高其加密子系统的加密级别将对系统的安全性和性能都产生非常大的影响,则该子系统一定属于()

A.风险点和敏感点

B.权衡点和风险点

C.权衡点和敏感点

D.风险点和非风险点

答案

参考答案:C

解析:本题考查软件体系结构中的评估方法。 加密子系统的加密级别会对安全性和性能产生影响,一般而言,加密程度越高,安全性越好,但是其性能会降低;而加密程度越低,安全性越差,但性能一般会提高。因此该子系统将在安全性和性能两个方面产生冲突,所以该子系统一定属于权衡点和敏感点。

写作题

A good way to pass an exam is to work hard every day in the year。3 You may fail in an exam if you are lazy for most of the year and then work hard only a few days before the exam.If you are taking an English exam, do not only learn rules of grammar.21·cn·jy·com

Try to read stories in English and speak in English whenever you can.A few days before the exam, you should start going to bed early.Don’t stay up late at night studying and learning things.Before you start the exam, read carefully over the question paper.4 Try to understand the exact meaning of each question before you pick up your pen to write.When you have at last finished your exam, read over your answers.Correct the mistakes if there are any and make sure that you have not missed anything out.

A)根据短文内容简要回答问题。

小题1:Learning rules of grammar is enough to pass the English exam, isn’t it?

                                                                   

小题2:What should you do a few days before the exam?

                                                                   

B)将短文中划线的句子译成汉语。

小题3:                                                                     

小题4:                                                                   

C)请给短文拟一个适当的标题。

小题5:                                                                   

单项选择题