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
>
湖北普通专升本
>
计算机
>
浏览试题
[单选题]
网络防火墙的作用是______。(1分)
A
防止内部信息外泄
B
防止系统感染病毒与非法访问
C
防止黑客访问
D
建立内部信息和功能与外部信息和功能之间的屏障
收藏
查看答案
参考答案
试题答案：
D
答案解释：
相关题目
下列关于打印机的描述中，（ ）是正确的。
在Windows 中，不能对软盘进行格式化。
计算机能够直接执行的程序是__________。
三、简答题：本大题共6小题，每小题5分，共30分。
请问Internet提供的主要服务有哪些？
计算机病毒具有____。
31．简述美国计算机安全专家Fred Cohen博士对计算机病毒的解释。
在计算机系统中，通常所说的"系统资源"指的是( )。
24. 在缺页发生时，首先淘汰________未被使用的页面称为LRU置换算法
软盘驱动器属于CPU的一部分。
热门试题
1.
28.下列系统中，适合采用逐步切换方式完成旧系统到新系统切换的是
2.
25.下列测试类型中，用于测试软件在最大任务量下持续正常运行能力的是
3.
4. Present pension structures no longer work. They were established in a more youthful period with relatively few older people who were often poor and iii, and generally spent only a short time in retirement. In rich countries today, older people are often well-off and in good health, and are spending around 20 years in retirement. Therefore there is the need for reform.This survey has presented the arguments for more private funding and for fairer pensions. Such changes will create motives for individuals to take charge of their own retirement needs rather than leaving the task to the state. This, in turn, will make the provision of public pensions more afford- able.Even so, the state will continue to play a leading role in pensions. At a minimum, governments must offer a safety net, probably in the form of a defined benefit financed through taxation, for people who for some reason have not been able to provide for themselves and who would otherwise be miserable in old age. More broadly, there is a case for the state to offer a slimmed-down pay-as-you-go pension system, although as far as possible this should be organized along defined-contributions lines. Such provision widens the range of assets to include human capital because the effective return comes from total wages, and offers a safe if low return.Governments also have to create a suitable framework for effective private pensions. Administrative(行政的)expenses have to be tightly controlled, and appropriate tax motives have to be offered to encourage voluntary pension saving. Where the state provides a generous safety net, private-pension saving may have to be made mandatory(强制的), otherwise many people will not bother.So much for the developed countries, but what of the more youthful populations of tile rest of the world? In 1994, the World Bank came down heavily in favor of more funding in private accounts. It thought the state's role should be to provide a smallish first pillar with the limited task of providing protection against old-age poverty, and to command a privately-funded second pillar to provide the bulk of pensions.(5分)4.1 More private funding and fairer pensions____.(1分)A. can urge people to save more private-pensionsB. may be financed through taxC. can lessen the burden of the stateD. can provide more public pensions
4.
以他物权设立目的不同为标准，他物权可分为()
5.
下列不属于《立法法》9条规定了我国的法律绝对保留，下列不属于法律绝对保留（）
热门试卷
成人高考专升本《政治》模拟试卷
去做题
已有3410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2205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1893做题
湖北成考专升本政治真题（2021年）
去做题
已有1324做题
成人高考高起点语文考试高分突破试题及答案四
去做题
已有1189做题
