首页
普通专升本
成人高考
学位英语
在线刷题
最近学习
最近学习课程
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
您现在位置：
模拟考场
>
湖北自学考试
>
公共课
>
计算机网络技术
>
浏览试题
[填空题]
21．入侵检测采用误用检测或
_______
的方式，发现非授
权或恶意的系统及网络行
为，为防范入侵行为提供有效的手段。
收藏
查看答案
参考答案
试题答案：
第1空：[ "异常检测" ]
答案解释：
相关题目
23．计算机病毒的检测手段有特征代码法、校验和法、行为监测法和 _________ 。
29．简述个人防火墙的优点
19.单钥密码体制又称为_________密码体制。
23．从系统构成上看，入侵检测系统应包括数据提取、__________、响应处理和远程管理四大部分。
计算机网络非定量的性能指标有QoS、可靠性、可扩展性、安全性、_____和成本等。
简述杀毒软件的基本工作原理。
24．计算机病毒的作用机制分别称为_______、传染机制、破坏机制。
18．地线种类有直流地、屏蔽地、静电地、雷击地和_________ 。
ATM网络采用固定长度的信元传送数据，信元长度为
7．包过滤防火墙一般不检查
热门试题
1.
27.下列关于白盒测试的叙述中，正确的是
2.
以下哪条是导致学生品德不良的主观原因（）
3.
完全燃烧1摩尔某饱和一元醇，生成67.2升(标准状况下)CO2和72克H2O，该醇的分子式为__________。
4.
10.主要从事国际间金融事务的协调和监督的国际金融机构是
5.
3. Friction is a force which opposes motion. Much of the energy supplied to a complicated machine with many moving parts is wasted in overcoming this opposition. The energy is converted into useless heat. The amount thus lost can be considerably reduced and the life of the machine prolonged by careful lubrication. This reduction improves the efficiency of the machine. Another way in which friction is reduced is to substitute roller or ball bearings for the earlier type of bearing, in which the surfaces in contact move by sliding. Bearings of these later types are used very extensively in many kinds of modern machinery.It must not be assumed, however, that friction is always a disadvantage. In many instances it is highly important. Belts are often used in conveying power from one machine to another. In the absence of friction, this could not be done. The driving wheel would not run the belt, neither would the belt run the wheel to driver. Without friction, then, belted machinery could not be used. Again in the case of all motor vehicles, friction is essential in the operation of the brake. Were there no friction, there could be no brake. But even this illustration does not give an adequate picture of the importance of friction. The vehicle could not even be started if it were not for the friction exerted between the tires and the road. Nails hold in wood, and screws hold in either wood or metal by reason of friction, without which they would be useless. Walking is difficult enough on an icy pavement, but it would be wholly impossible if there were no friction at all between the shoe and the pavement.(5分)3.1 Friction arises when____.(1分)A. an opposing force of motion exists B. the energy is wastedC. everything is motionlessD. a complicated machine is supplied with energy
热门试卷
成人高考专升本《政治》模拟试卷
去做题
已有3418做题
2020年湖北成人高考专升本政治模拟试题三
去做题
已有2214做题
成人高考专升本政治考试模拟试题及答案(1)
去做题
已有1901做题
湖北成考专升本政治真题（2021年）
去做题
已有1366做题
湖北成考高起点语文真题（2021年）
去做题
已有1233做题
