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6、网络安全的结构层次包括物理安全 、___、 安全服务。
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【填空题】
7、网络安全面临的主要威胁有黑客攻击 、 计算机病毒 、___。
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8、计算机安全的主要目标是保护计算机资源免遭毁坏 、 替换 、 ___ 、 丢失。
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9、数据库系统安全特性包括数据独立性 、___ 、 数据完整性 、 并发控制 、故障恢复。
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10、数据库安全的威胁主要有 ___ 、 损坏 、 窃取。
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11、数据库中采用的安全技术有户标识和鉴定 、___、 数据分级 、 数据加密。
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12、计算机病毒可分为文件病毒 、___、 多裂变病毒 、 秘密病毒 、异性病毒、宏病毒等几类。
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13、数据库常见的攻击方式为SQL注入、___、网页挂写。
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14、数据库的破坏来自非法用户、___、多用户并发访问几个方面。
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15、为了保护数据库,防止被恶意的滥用,可以从环境级、职员级、___、网络级、DBS级由低到高的我一个级别上设置各种安全措施。
【填空题】
16、与传统防火墙不同,WAF工作在___,因此对web应用防护具有先天的技术优势。
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17、SQL注入即通过把命令插入Web表单进行提交___的查询字符串,最终达到欺骗服务器执行恶意的___。
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18、计算机病毒按传染程序的特点分类,可以分成引导扇区传染病毒、___传染病毒和网络传染病毒。
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19、计算机病毒是指编制或者在计算机程序中插入的破坏计算机功能或者数据,影响计算机使用并且能够自我复制的一组计算机指令或者___。
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20、计算机单机使用时,传染计算机病主要是通过___。
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21、计算机病毒是指能够侵入计算机系统病在计算机系统中潜伏,传播,破坏系统正常工作的一种具有繁殖能力的___。
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22、木马危险很大,但程序本身无法___。
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23、操作系统安全的主要特征有:最小特权原则,___,安全审计,安全域隔离。
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24、网络服务器安全配置的基本安全策略宗旨是最小权限+最少应用+最细设置+___=最高的安全。
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25、在 Windows中可以使用 ___命令来查看端端口。
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26、加密文件系统是一个功能强大的工具,用于对客户端计算机和___上的文件和文件夹进行加密。
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27、在各种各样的后门中,一般也不外乎___,漏洞后门和木马后门三类。
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29、防火墙是一种网络,他用与增强内部网络安全性,决定外界的哪些用户可以访问内部的哪些服务,以及那些外部站点可以被内部人员访问的___。
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30、常见的防火墙有三种类型:分组过滤防火墙,___和状态检测防火墙。
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31、防火墙按组成件分为___和应用网关。
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32、包过滤防火墙的过滤规则基于___。
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33、掉话率=___*100%,其中,___总次数统计的是无限侧的CLEARREGVEST消息。
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34、与定位功能相关的辅助无线功能有:指配 、___、 overload与underload 子小区结构 、 小区负荷分担 、 扩展小区 、 小区内切。
【填空题】
35、是否软件用L算法,是由___和MSRXSUFF参数来决定。
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36、BO软件包括3个模板:BusinessObjects、___、Suporvisor。
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37、当我们要直接做一张报表,不需要建立新的UNIVERSE的时候,要用模板 ___:当我们要建立一个新的universe的时候,要用模板 Designer:当我们要做用户管理工作的时候,要用模板 Suporvisor。
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39、调整向内负荷分担可调整参数___。
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40、常用的电子邮件协议有___和POP3。
【填空题】
41、目前,成熟的端到端安全电子邮件标准有___和S/MIME。
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42、Internet电子欺骗主要有___、DNS电子欺骗、IP电子欺骗。
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43、ARP是负责将IP地址转化成对应的___协议。
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44、VPN常用的连接方式有通过___、通过Internet实现网络互联等。
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45、在计算机网络安全技术中,Dos的中文译名是___。
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46、___的特点是先用一些典型的黑客入侵手段控制一些高宽带的服务器,然后在这些服务器上安装攻击进程,集数十台、数百台甚至上千台机器的力量对单一攻击目标实施攻击。
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【单选题】
- What do you do on Sunday?___
A. I 'm a teacher.
B. I play football.
C. You are a student.
D. They clean rooms.
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- Our class won the girls' relay race in our school's sports meeting.___
A. That's right.
B. Thanks a lot.
C. Congratulations!
D. It's a pleasure.
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- Hi, is Mary there, please?___
A. Hold on. I'll get her.
B. No, she isn't here.
C. Yes, she lives here.
D. Yes, what do you want?
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- I am afraid I can't return the book to you before Friday. ___
A. Don't be afraid
B. Be careful
C. Not at all
D. Take your time
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- I really don't know how to thank you enough. ___.
A. No problem
B. Think nothing of it
C. Not at all
D. It doesn't matter
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A. No, you needn't
B. No, you mustn't
C. Yes, you will
D. No, you won't
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-I'm sorry to hear that you failed in the exam______.
A. Not at all
B. Oh, thank you.That's very kind of you
C. You are welcome
D. Yes, I'm really sorry
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-I will,______.
A. that's all right
B. thank you
C. all right
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-Hello, may I speak to Zhao Hua?_____.
A. My name is Zhao Hua
B. I'm Zhao Hua
C. This is Zhao Hua speaking
D. Zhao Hua is me
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___This is Mr Smith speaking now.
A. Who are you
B. Who is that
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A. Don't worry about it.
B. Congratulations! That's a difficult course.
C. Mr. Brown is very good.
D. Good luck to you!
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-Would you go to the concert with me?___, but I'm very busy now.
A. I'd like to
B. Sure
C. No problem
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-I'll be away on a business trip. Would you mind looking at my cat?Not at all. _______.
A. I have no time
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C. You can leave
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- Hi, Jim! Nice to meet you.____.
A. Certainly
B. Many thanks
C. OK
D. Nice to meet you, too
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- Hello, may I speak to Mike?_____
A. Who are you?
B. Sorry, he isn't in.
C. Thank you very much.
D. Yes, here you are.
【单选题】
- Will you join us for lunch?____.
A. No, I won't
B. Yes, with pleasure
C. Yes, please
D. Yes, help yourself
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- Thank you for your great dinner. I really enjoyed it._____you enjoyed it.
A. I'm so glad
B. I'm sorry
C. What a pity
D. Surprisingly
【单选题】
- I heard Susan surprised her teacher by working hard. Yes, ___
A. her teacher worked hard.
B. Susan worked hard.
C. the teacher was surprising.
D. Susan was surprised.
【单选题】
- Peter, don't step on the grass_______.
A. It doesn't matter
B. I can't do it
C. Don't worry
D. Sorry, I won't do it again
【单选题】
- How was your journey to Paris? - ____
A. It went very well.
B. I flew there.
C. I love Paris.
D. Thank you for asking.
【单选题】
- I'm sorry for being late, Mr Lt______.
A. All right
B. That's right
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D. Never mind
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- Happy birthday to you! ___!
A. Happy birthday to you
B. I'm very glad
C. That's all right
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- Do you like country music?___.
A. Yes, I like basketball a lot
B. It's far too crowded
C. Yes, I'm crazy about it
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- Have a cup of tea, ____? Thanks a lot.
A. don't you
B. haven't you
C. shall we
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- Thank God.It's Friday again.A nice weekend!___.
A. Me too
B. Yes,I'll be free then
C. That's all right
D. The same to you
【单选题】
— Write to me when you get home. OK, I ______.
A. must
B. should
C. will
D. can
【单选题】
Tom is so talkative. I’m sure you'll soon get tired ___ him.
A. of
B. with
C. at
D. on
【单选题】
I don't know ____ to deal with such matter.
A. what
B. how
C. which
D. /
【单选题】
___ is your girl friend like? She is very kind and good-looking.
A. How
B. What
C. Which
D. Who
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He ___ driving me home, even though I told him I lived nearby.
A. insisted on
B. insisted at
C. insisted that
D. insisted in
【单选题】
We came finally ___the conclusion that she has been telling lies all the time.
A. of
B. into
C. to
D. at
【单选题】
I won’t make the___mistake next time.
A. like
B. same
C. near
D. similar
【单选题】
He ___lives in the house where he was born.
A. already
B. yet
C. still
D. ever
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I am not used to speaking ___ public.
【单选题】
I didn’t know what to do, but then an idea suddenly ___to me.
A. appeared
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Measles (麻疹) ___ a long time to get over.
A. spend
B. spends
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D. takes
【单选题】
A pair of spectacles ___ what I need at the moment.
A. is
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【单选题】
— Five days ___ too long for me to wait.
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B. were
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【单选题】
You had better ___ a doctor as soon as possible.
A. seeing
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【单选题】
The boy is not happy at the new school. He has ___ friends there.
A. few
B. a few
C. little
D. a little