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2014年上半年 上午试卷 综合知识
第 71 题
知识点 net  
章/节 计算机专业英语  
 
 
Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers （71）through a real-time communication network such as the Internet．In science，cloud computing is a （72）for distributed computing over a network，and means the （73）to run a program or application on many connected computers at the same time．
The architecture of a cloud is developed at three layers： infrastructure，platform，and application，The infrastructure layer is built with virtualized compute，storage，and network resources．The platform layer is for general-purpose and repeated usage of the collection of software resources．The application layer is formed with a collection of all needed software modules for SaaS applications．The infrastructure layer serves as the（74）for building the platform layer of the cloud． In turn，the platform layer is a foundation for implementing the（75）layer for SaaS applications．
 
  A.  connected
 
  B.  imlemented
 
  C.  optimized
 
  D.  Virtualized




 
 
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知识点讲解
· net
 
        net
        在网络管理中，最为常用的就是net命令家族。常用的net命令有以下几个。
        .net view命令：显示由指定的计算机共享的域、计算机或资源的列表。
        .net share：用于管理共享资源，使网络用户可以使用某一服务器上的资源。
        .net use命令：用于将计算机与共享的资源相连接或断开，或者显示关于计算机连接的信息。
        .net start命令：用于启动服务，或显示已启动服务的列表。
        .net stop命令：用于停止正在运行的服务。
        .net user命令：可用来添加或修改计算机上的用户账户，或者显示用户账户的信息。
        .net config命令：显示正在运行的可配置服务，或显示和更改服务器服务或工作站服务的设置。
        .net send命令：用于将消息（可以是中文）发送到网络上的其他用户、计算机或者消息名称上。
        .net localgroup命令：用于添加、显示或修改本地组。
        .net accounts命令：可用来更新用户账户数据库、更改密码及所有账户的登录要求。



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