[说明] 某省级重点中学欲构建一个局域网,考虑到该中学的很多现代化教学业务依托于网

题型:问答题

问题:

[说明]
某省级重点中学欲构建一个局域网,考虑到该中学的很多现代化教学业务依托于网络,要求中学内部用户能够高速访问相关的5台内部高性能服务器,并且要求通过网络的冗余性设计来获得较高的各类业务服务的可用性。
某系统集成公司根据该中学的相关需求,将网络拓扑结构设计为双核心来进行负载均衡和容错。该公司给出的网络拓扑图如图6-7所示。


[问题3]
在校外住宿的教职工要求使用校园网部分内部服务器以满足其备课及浏览校园信息等需求。系统集成公司采用了IPSec VPN的远程接入方案。请从安全保证角度简要叙述实现VPN的几种关键技术。

考点:计算机软件水平考试高级网络规划设计师高级网络规划设计师下午试题(Ⅰ)
题型:问答题

张某为严重烧伤患者,体质虚弱,为了营养支持和治疗,请营养师进行会诊。

长期食用该膳食,应注意补充的维生素为()

A.维生素A和水溶性维生素

B.维生素E和水溶性维生素

C.维生素D和水溶性维生素

D.维生素K和水溶性维生素

E.维生素A和维生素E

题型:问答题

阅读理解

     Japanese high school students either walk or ride bicycles if the distance is not too great. In other cases, students must take public buses and trains. After junior high school, students attend schools based on their high school entrance examination scores. So some students travel a great distance to attend the school.

     ◆________

     The school day begins at 8:30. Then students assemble in their homeroom classes for the day's studies. Each homeroom has an average of 40-45 students. Students stay in their homeroom classrooms for most

of the school day. Only for physical education, laboratory classes, or other subjects requiring special

facilities(设备) do students move to different parts of the school. Between classes and at lunchtime,

classrooms can be noisy, lively places. Some schools may have a cafeteria(自助餐厅), but most do not.

In most schools, students bring a box lunch from home, prepared by the mother in the early morning hours.

     Japanese students spend 240 days a year at school, 60 days more than American students. Students in high schools take three years' each of the following subjects mathematics, social studies, Japanese, science, and English. Other subjects include physical education, music, art, and moral(道德的) studies. All the

students in one grade level study the same subjects. Given the number of required subjects, electives

(选修科目) are few.

     ◆Afterschool Activities

     Club activities take place after school every day. Students can join only one club, and they rarely

change clubs from year to year, so the clubs are relatively stable. Clubs are made up of sports clubs

(baseball, soccer, judo, kendo, etc.) and culture clubs(English, broadcasting, science, etc.). New students usually are encouraged to select a club shortly after the school year begins in April. Clubs meet for two

hours after school each day and many clubs continue to meet during school vacations.

1. Most Japanese high school students often have their lunch________.

A. in restaurants  

B. in school cafeterias

C. at home    

D. in homeroom classrooms

2. Students in the USA go to school________days a year.

A. 180  

B. 200  

C. 240  

D. 300

3. The underlined word "rarely" in the fourth paragraph means "________".

A. always  

B. never  

C. seldom  

D. often

4.From the passage we know that________.

A. there are less than 40 students in each class in Japanese high schools

B. students must stay in homeroom classrooms for physical education

C. there are few subjects for students to choose except the required ones

D. there will not be any club activities during school vacations

5. The best subtitle for the second and third paragraphs may be "________".

A. At school  

B. In class

C. Subjects  

D. Homerooms

题型:问答题

美国学者西拉季和华莱士提出领导者除应具有身体特点特质外,还应具备( )等特质。

A.社会背景

B.智力

C.个性

D.任务定向

E.社会技能

题型:问答题

简述VCM泄露的应急处理。

题型:问答题

放映机输片齿轮36齿每分钟转数为()。

A.180转

B.288转

C.360转

D.500转

更多题库