问题 单项选择题

以下破解Oracle密码哈希值的步棸,其中哪个描述是错误的?()

A、用Sqlplus直接登录到Oracle数据库,使用selectusername,password formdba_users命令查看数据库中的用户名和密码,此时看到的密码是哈希值

B、在Cain的Cracker菜单点击导入用户名和哈希值,可直接显示用户密码明文

C、在Cain的Cracker菜单点解导入用户名和哈希值,只能通过字典破解

D、在Cain的Rainbow生成的表会占用大量的硬盘空间和内存,可是破解速度和效率很高

答案

参考答案:B

阅读理解

阅读理解

                                                                   Quiz of the Week

Alex: Good evening, ladies and gentlemen. I'm the host, Alex Beck. Welcome to Quiz of the Week!

Our first contestant is Andy Miller, from Springfield. Hello, Andy. How are you?

Andy: I'm fine, thanks, Alex.

Alex: Excuse me, Andy. You're in front of me. Stand next to me, please.

Andy: Sorry.

Alex: OK, here's your first question. What's the capital of France?

Andy: Uh...uh...I don't know.

Alex: Think of the song,  Andy. "I love Paris in the springtime, I love Paris in the fall."

Andy: Is it Paris?

Alex: Yes, that's right, Andy!  And now your second question. Where's Brasilia?

Andy: Uh, I think it's in Brazil.

Alex: Right! And now your third and last question. Who's Michael Jackson?

Andy: He's a singer.

Alex: That's right. Open the doors! Congratulations, Andy! Come and look at your prizes!

1. The name of the show is _______.

A. Answer the Questions          

B. Look at Your Prizes  

C.Quiz of the Week              

D.Think of a Song

2. Why does Andy say sorry to Alex?

A. Because he doesn't know the answers to the questions.  

B. We don't know.

C. Because he stands next to Alex.  

D. Because he stands in front of Alex.

3. You can watch this show at _______.

A. 8:00 a.m.  

B. 12:00 a.m.  

C. 3:00 p.m.    

D. 7:00 p.m.

4. Does the contestant answer all the questions correctly (正确地)?

A. Yes, he does.    

B. No, he doesn't.

C. No, she isn't.     

D. We don't know.

5. Here "Congratulations" means (意思是) _______ in Chinese.

A. 庆祝

B. 恭喜

C. 祝词   

D. 成功

多项选择题