【单选题】
计算机取证的常见工具正确的是。___
A. Enae
B. Enase
C. Enasse
D. nasse
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答案
B
解析
暂无解析
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【单选题】
计算机取证的常见工具的是___
A. SafeBack
B. Enase
C. NetMonitor
D. 以上都是
【单选题】
日志和审计分析工具正确的是。___
A. Swotch
B. Swatch
C. PsLeglist
D. nasse
【单选题】
基于网络的入侵检测系统担负着保护整个网段的任务,是安全策略实施中的重要组件,它具备以下特性___
A. 实施成本较低
B. 全面而准确的识别攻击特性
C. 攻击者不易转移证据
D. 以上都是
【单选题】
以下是密码学技术的基础性技术的是___
A. 身份认证
B. 数据完整性检验
C. 口令交换
D. 以上都是
【单选题】
在密码学的发展历史中出现过古典密码其中明文axy的密文应该是?___
A. GCD
B. CCD
C. FCD
D. OCD
【单选题】
现代密码学通过数学方法提出了现代密码学体制模型,下面不属于利用的是___
A. 明文
B. 接收源
C. 信息源
D. 密钥源
【单选题】
属于著名对策加密算法的是?___
A. DES
B. RC4
C. AEC
D. Blowfish
【单选题】
到目前为止。应用最为广泛的公开密钥密码体制是___
A. DES
B. AES
C. RSA
D.
E. IGamal
【单选题】
以下是基于生理特征的认证的是___
A. 指纹
B. 声音
C. 视网膜
D. 以上都是
【单选题】
企业防火墙可以使___与Internet之间相互隔离,限制彼此的互相访问从而保护内部网络
A. LAN
B. WAN
C. WLAN
D. Web
【单选题】
防火墙技术中有包过滤防火墙、代理服务器防火墙等。以下属于包过滤防火墙的是___
A. 自适应防火墙
B. 动态包过滤防火墙
C. 电路级网关
D. 混合型防火墙
【单选题】
蜜罐有4种不同的配置方式,下述不属于的是___
A. 加强服务
B. 弱化系统
C. 诱骗服务
D. 用户模式服务器
【单选题】
常用的蜜罐工具有___
A. 欺骗工具包
B. BOF
C. 幽灵
D. 以上都是
【单选题】
计算机病毒是?___
A. 被损坏的程序
B. 硬件故障
C. 一段特制的程序
D. 芯片霉变
【单选题】
计算机病毒的危害主要造成。___
A. 磁盘破坏
B. 程序和数据的破坏
C. 计算机用户的伤害
D. CPU的损坏
【单选题】
新买回来的未格式化的软盘,可能会有以下哪种情况___
A. 可能会有计算机病毒
B. 与带病毒的软盘放在一起会有计算机病毒
C. 一定给没有计算机病毒
D. 经那过带病毒的软盘的手碰过后会感染计算机病毒
【单选题】
计算机病毒一般由___四大部分组成的。
A. 感染模块、执行模块、触发模块、破坏模块
B. 感染模块、触发模块、破坏模块、引导模块
C. 感染模块、执行模块、破坏模块、引导模块
D. 触发模块、破坏模块、引导模块、执行模块
【单选题】
计算机病毒生命周期中,存在哪两种状态?___
A. 静态和潜状态
B. 静态和动态
C. 潜状态和发作态
D. 发作态和动态
【单选题】
在Window32位操作系统中,其EXE文件中的特殊表达为。___
A. MZ
B. PE
C. NE
D. LE
【单选题】
能够感染EXE、COM文件的病毒属于?___
A. 网络型病毒
B. 蠕虫型病毒
C. 文件型病毒
D. 系统引导型病毒
【单选题】
下列描述不正确的是?___
A. 不存在能够防治未来的所有的病毒的发病毒软、硬件
B. 病毒产生在前,反病毒手段相对滞后
C. 现在的杀毒软件能够查杀未知病毒
D. 数据备份是防治数据丢失的重要手段
【单选题】
蠕虫和从传统计算机病毒的区别主要体现在___。
A. 存在形式
B. 传染机制
C. 传染目标
D. 破坏方式
【单选题】
下列___不是常用程序的默认端口。
A. 80
B. 8080
C. 23
D. 21
【单选题】
实现DoS攻击的手段有哪些?___
A. 滥用合理的服务请求
B. 制造高流量无用数据
C. 利用传输协议缺陷
D. 以上都对
【单选题】
SYN洪水攻击是利用什么特性来发动攻击的?___
A. IP头的RST位
B. 主机自动进行回复的服务
C. 三次握手
D. 广播地址的特性
【单选题】
泪滴也称为分片攻击,它是一种典型的利用___的漏洞进行拒绝服务攻击的方式。
A. IMCP协议
B. TCP/IP协议
C. ARP协议
D. HTTP协议
【单选题】
以下选项中,不属于DoS技术攻击的是___
A. 组合攻击
B. UDP洪水
C. 泪滴
D. SYN洪水
【单选题】
以下对拒绝服务攻击的分类叙述正确的是___
A. 按漏洞利用方式分类,可分为特定资源消耗类和暴力攻击类
B. 按攻击数据包发送速率变化方式分类,可分为固定速率和可变速率
C. 按攻击可能产生的影响,可分为系统或程序奔溃类和服务降级类
D. 以上都对
【单选题】
构造一个特殊的SYN包,需要什么___
A. 源地址和目标地址相同
B. 源代码和目标代码相同
C. 数据源
D. 主机
【单选题】
以下选项中,属于DDoS工具产生的网络通信信息的是?___
A. 检测通信
B. 查询请求通信
C. 控制信息通信
D. 数据包
【单选题】
以下选项中,可被WinNuke攻击的目标端口是?___
A. 139
B. 138
C. 113
D. 以上都对
【单选题】
以下选项中,不属于分布式拒绝服务攻击的防御方法的是?___
A. 优化网络和路由结构
B. 保护主机系统安全
C. 滥用合理的服务请求
D. 与因特网服务供应商合作
【单选题】
下列选项中,能用来检测DDoS软件的是___
A. RID
B. TID
C. TFN
D. RAD
【单选题】
交换机由四个基本元素组成。以下不属于的是___
A. 端口
B. 工作区
C. 缓冲区
D. 信息帧的转发机构
【单选题】
以下哪一项不属于网络嗅探技术的优势?___
A. 原理简单
B. 易于实现
C. 易于被发现
D. 难以被察觉
【单选题】
以下哪一项不属于网卡的工作模式?___
A. 广播模式
B. 组播模式
C. 间接模式
D. 混杂模式
【单选题】
网卡数据包中无用的数据可以通过哪方面过滤___
A. 站过滤
B. 协议过滤
C. 服务过滤
D. 以上都对
【单选题】
低级动态链接库运行在哪一层?___
A. 网络层
B. 链路层
C. 用户层
D. 物理层
【单选题】
目前的网络嗅探防范技术主要有___
A. 采用安全的网络拓扑结构
B. 会话加密技术
C. 防止ARP欺骗
D. 以上都对
【单选题】
以下哪一项不属于数据通道加密方式。___
A. SSH
B. SLS
C. SSL
D. VPN
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【单选题】
 The new law passed in Rome will ________.___
A. help improve fishing environment
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C.  guarantee better conditions for goldfish
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A. awareness of animal protection
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A. keep their dogs or cats in cars
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D. feed homeless animals in car parks
【单选题】
 We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
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D. the new law gives recognition to the  people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress    
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【单选题】
As to the greenhouse effect, the author ________.___
A.  share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into                 
B. make up for
C. set up                   
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient        
B. very expensive
C. quite dangerous            
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
【单选题】
According to the passage, whether TV is good or not depends on ___________.___
A. its quality        
B. people's attitude towards it
C. how we use it      
D. when we use it
【单选题】
What regulation was issued by New York State concerning beverage containers?___
A. A fee should be charged on used containers for recycling.
B. Throwaways should be collected by the state for recycling.
C. Consumers had to pay for beverage containers and could get their money back on returning them.
D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
B. be separated from other rubbish
C. have a second-life value   
D. end up somewhere underground
【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
A. how to reduce their recycling costs
B. to sell them at a profitable price
C. how to turn them into useful things
D. to lower the prices for used materials
【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
A. recycling causes little pollution
B. other methods are more expensive
C. recycling has great appeal for the jobless
D. local governments find it easy to manage
【单选题】
It can be concluded from the passage that ____________.___
A. recycling is to be recommended both economically and environmentally
B. local governments in the U.S. can expect big profits from recycling
C. rubbish is a potential remedy for the shortage of raw materials
D. landfills will still be widely used for waste disposal
【单选题】
The author chose to study engineering at a small liberal-arts university because he ________.___
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist
D. wanted to coordinate engineering with liberal-arts courses in college
【单选题】
 According to the author, by interacting with people who study liberal arts, engineering students can __________.___
A. broaden their horizons
B. receive guidance in their careers
C. become noble idealists
D. balance engineering and the liberal arts
【单选题】
In the eyes of the author, a successful engineering student is expected ______________.___
A. to be imaginative with a value system to guide him
B. to be a technical genius with a wide vision
C. to have an excellent academic record
D. to be wise and mature
【单选题】
The author's experience shows that he was ________.___
A. creative        
B. ambitious  
C. irrational        
D. unrealistic
【单选题】
 The underlined word "they" in "... together they threaten to confuse." (Para.5) refers to ____________.___
A. practicality and rationality  
B. engineering and the liberal arts
C. reality and noble ideals  
D. flexibility and a value system
【单选题】
It can be learned from the passage that the Ouchidas' house __________.___
A. failed to meet energy conservation standards
B. was designed and constructed in a scientific way
C. is well worth the money spent on its construction
D. is almost faultless from the point of energy conservation
【单选题】
What made the Ouchidas' new house a horrible dream?___
A. Lack of fresh air.          
B. Gas leakage in the kitchen.
C. The newly painted walls.  
D. Poor quality of building materials.
【单选题】
The underlined word "accentuate" (Para. 3) most probably means "________".___
A. worsen        
B. accelerate  
C. relieve          
D. improve
【单选题】
Why were cracks in old houses not a big concern?___
A. Because environmental protection was given top priority.
B. Because indoor cleanness was not emphasized.
C. Because they were technically unavoidable.
D. Because energy used to be inexpensive.
【单选题】
This passage is most probably taken from an article entitled "_________".___
A. Energy Conservation
B. Air Pollution Indoors
C. House Building Crisis
D. Traps in Building Construction