问题 单项选择题

在信息系统的用户管理中,______身份认证方式是一种方便、安全的身份认证技术。它采用软硬件相结合、一次一密的强双因子认证模式,很好地解决了安全性与易用性之间的矛盾。

A.用户名/密码
B.动态密码
C.IC卡
D.USB Key

答案

参考答案:D

解析: LISB Key身份认证采用软硬件相结合、一次一密的强双因子认证模式,很好地解决了安全性与易用性之间的矛盾。USB Key是一种USB接口的硬件设备,它内置单片机或智能卡芯片,可以存储用户的密钥或数字证书,利用USB key内置的密码算法实现对用户身份的认证。每一个USB Key都具有硬件PIN码保护,PIN码和硬件构成了用户使用USB Key的两个必要因素,即所谓“双因子认证”。用户只有同时取得了USB Key和用户PIN码,才可以登录系统。
基于USB Key身份认证系统主要有两种应用模式:①是基于冲击/响应(挑战/应答)的认证模式,②是基于PKI体系的认证模式,目前运用在电子政务、网上银行。

单项选择题 A1/A2型题
阅读理解

阅读理解

     How to improve my life? Many people think that they have to accept whatever life throws at them.

They'll say, "This is my fate, my destiny. I cannot change it. "

     Of course not! You don't have to suffer needlessly. Your destiny depends on you, not on any other

external factors.

     I know someone who says she just accepts what life gives her because she has done everything she

can to improve it. Guess what her lifestyle is? She wakes up in the morning, goes to work, comes back

home, relaxes, chats with people, watches TV, then goes to sleep. Next day, the same routine cycle

follows.

      Huh! Is this what she calls "doing her best"? She believes she has tried her best and just accepts it in

her heart that this is the life that God has intended for her to live; that her luck can only change if God

wills it. Of course God wants us to be happy and live our life to the fullest, but we have to do our share

of exerting (运用) the effort to live the life of our dreams.

     Remember that you reap what you sow. You just don't sit around and wait for a million dollars to fall

from the sky. You have to get off the couch, get your eyes off the TV screen, get your hands off the

phone.  Don't expect your luck to change unless you do something about it. If something goes wrong,

don't just regard it as a temporary setback; but use it as feedback. Learn your lesson, make the most of

the situation, and do something to solve the problem. It's not enough to think positively: you also have to

act positively.

     If someone's life is in the trouble, do you just hope and pray that things will turn out fine? Of course

not! You get to do anything you can to save the person. So it is with your own life. It is not enough to

hope for the best, but you have to do your best. In other words, don't just stand (or sit ) there, do

something to improve your life.

1. According to the woman mentioned in Para. 3, her life ________.

A. doesn't need improving

B. couldn't be improved

C. will be better some day

D. will be worse in the future

2. What does the author think of the woman's life?

A. Positive.  

B. Satisfying.

C. Colorful.  

D. Passive.

3. Which of the following statements is the author's opinion?

A. Your temporary problem is not discouraging.

B. Your luck can be changed by your efforts.

C. You can only achieve success when God wills it.

D. You should treat yourself in the way you treat friends.

4. In Para. 5, the author emphasized the importance of ________.

A. positive action  

B. positive thinking

C. hope for the best  

D. intention to succeed

5. The text is mainly written to advise you to ________.

A. understand yourself  

B. improve your life

C. believe in yourself  

D. change your normal way