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2021年上半年 上午试卷 综合知识
第 71 题
知识点 net  
 
 
The internet of things, or IoT,is a system of interrelated computing(71),mechanical and digital machines, objects, animals or people that are provided with unique identifiers(UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.
An IoT ecosystem consists of web-enabled smart devices that use(72),such as processors,sensors and communication hardware, to collect send and act on data they acquire from their environments. IoT devices share the sensor data they collect by connecting to an IoT ga eway orother edge device where data is either sent to the cloud to be analyzed or analyzed locally.Sometimes, these devices(73)with other related devices and act on the information they get from one another. The devices do most of the work without human intervention although people can interact with the devices -for instanceto set them upgive them instructions or access the data.
The connectivity, networking and communication protocols used with these web-enabled devices largely depend on the specific IoT(74)deployed. IoT can also make use of artificial intelligence(AI)and machine learning to(75)in making data collecting processes easier and more dynamic.
 
  A.  devices
 
  B.  programs
 
  C.  servers
 
  D.  systems
 
 




 
 
 
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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