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发布时间: 2022-05-13 08:44
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The prevailing distributed computing model of the current era is called ctiem servar computing.A( )is a solution in which the presentation, presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers. A ( ) is a personal computer that does not have to be very powerful in terms of processor speed and memory because it only presents the interface to the user. A( )is a personal computer,notebook.computer,or workstation that is typically more powerful in terms of processor speed,memory,and storage capacity. A( )hosts one or more shamad database but also executes all database commands and services for information systems.A (n)(作答此空)hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.
本题解析:
现在主流的分布式计算是客户/服务器计算模式。客户/服务器系统是一种解决方案,其中表示层、表示逻辑层、应用逻辑、数据操作、数据层分布在客户的PC端与一个或多个服务器端之间。瘦客户端指的是个人电脑在处理速度、内存方面无须很强大,因为它仅仅是展示接口给用户。胖客户端是指个人电脑、笔记本、工作站在处理速度、内存、存储容量方面都很强大的一类电脑。数据库服务器控制一个或多个共享数据库,同时也执行所有数据库命令以及服务于信息系统。web服务器控制互联网、信息平台,与客户端通信,返回给客户端文件与数据。
The prevailing distributed computing model of the current era is called ctiem servar computing.A( )is a solution in which the presentation, presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers. A ( ) is a personal computer that does not have to be very powerful in terms of processor speed and memory because it only presents the interface to the user. A( )is a personal computer,notebook.computer,or workstation that is typically more powerful in terms of processor speed,memory,and storage capacity. A(作答此空 )hosts one or more shamad database but also executes all database commands and services for information systems.A (n)( )hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.
本题解析:
现在主流的分布式计算是客户/服务器计算模式。客户/服务器系统是一种解决方案,其中表示层、表示逻辑层、应用逻辑、数据操作、数据层分布在客户的PC端与一个或多个服务器端之间。瘦客户端指的是个人电脑在处理速度、内存方面无须很强大,因为它仅仅是展示接口给用户。胖客户端是指个人电脑、笔记本、工作站在处理速度、内存、存储容量方面都很强大的一类电脑。数据库服务器控制一个或多个共享数据库,同时也执行所有数据库命令以及服务于信息系统。web服务器控制互联网、信息平台,与客户端通信,返回给客户端文件与数据。
The prevailing distributed computing model of the current era is called ctiem servar computing.A( )is a solution in which the presentation, presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers. A ( ) is a personal computer that does not have to be very powerful in terms of processor speed and memory because it only presents the interface to the user. A(作答此空)is a personal computer,notebook.computer,or workstation that is typically more powerful in terms of processor speed,memory,and storage capacity. A( )hosts one or more shamad database but also executes all database commands and services for information systems.A (n)( )hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.
本题解析:
现在主流的分布式计算是客户/服务器计算模式。客户/服务器系统是一种解决方案,其中表示层、表示逻辑层、应用逻辑、数据操作、数据层分布在客户的PC端与一个或多个服务器端之间。瘦客户端指的是个人电脑在处理速度、内存方面无须很强大,因为它仅仅是展示接口给用户。胖客户端是指个人电脑、笔记本、工作站在处理速度、内存、存储容量方面都很强大的一类电脑。数据库服务器控制一个或多个共享数据库,同时也执行所有数据库命令以及服务于信息系统。web服务器控制互联网、信息平台,与客户端通信,返回给客户端文件与数据。
The prevailing distributed computing model of the current era is called ctiem servar computing.A( )is a solution in which the presentation, presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers. A(作答此空)is a personal computer that does not have to be very powerful in terms of processor speed and memory because it only presents the interface to the user. A( )is a personal computer,notebook.computer,or workstation that is typically more powerful in terms of processor speed,memory,and storage capacity. A( )hosts one or more shamad database but also executes all database commands and services for information systems.A (n)( )hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.
本题解析:
现在主流的分布式计算是客户/服务器计算模式。客户/服务器系统是一种解决方案,其中表示层、表示逻辑层、应用逻辑、数据操作、数据层分布在客户的PC端与一个或多个服务器端之间。瘦客户端指的是个人电脑在处理速度、内存方面无须很强大,因为它仅仅是展示接口给用户。胖客户端是指个人电脑、笔记本、工作站在处理速度、内存、存储容量方面都很强大的一类电脑。数据库服务器控制一个或多个共享数据库,同时也执行所有数据库命令以及服务于信息系统。web服务器控制互联网、信息平台,与客户端通信,返回给客户端文件与数据。
The prevailing distributed computing model of the current era is called ctiem servar computing.A(作答此空)is a solution in which the presentation, presentation logic,application logic,data manipulation and data layers are distributed between client PCs and one or more servers. A ( ) is a personal computer that does not have to be very powerful in terms of processor speed and memory because it only presents the interface to the user. A( )is a personal computer,notebook.computer,or workstation that is typically more powerful in terms of processor speed,memory,and storage capacity. A( )hosts one or more shamad database but also executes all database commands and services for information systems.A (n)( )hosts Internet or intranet web sites,it communicates with clients by returning to them documents and data.
本题解析:
现在主流的分布式计算是客户/服务器计算模式。客户/服务器系统是一种解决方案,其中表示层、表示逻辑层、应用逻辑、数据操作、数据层分布在客户的PC端与一个或多个服务器端之间。瘦客户端指的是个人电脑在处理速度、内存方面无须很强大,因为它仅仅是展示接口给用户。胖客户端是指个人电脑、笔记本、工作站在处理速度、内存、存储容量方面都很强大的一类电脑。数据库服务器控制一个或多个共享数据库,同时也执行所有数据库命令以及服务于信息系统。web服务器控制互联网、信息平台,与客户端通信,返回给客户端文件与数据。
某项目包括A~G七个作业,各作业之间的衔接关系和所需时间如下表:
其中,作业C所需的时间,乐观估计为5天,最可能为14天,保守估计为17天。假设其他作业都按计划进度实施,为使该项目按进度计划如期全部完成。作业C()。
本题解析:
关键路径ABDEG=27天
作业C的期望时间=(乐观时间+4×最可能时间+保守时间)/6=13。项目的总工期,即关键路径为ABDEG=27天,活动C所在的路径ABCEG,需要25天,因此活动C比期望时间最多可拖延2天。
非负变量x和y,在x≤4,y≤3和x+2y≤8的约束条件下,目标函数2x+3y的最大值为()。
本题解析:
根据题干,满足目标函数2x+3y的最大值时,X=4,带入x+2y≤8中,得y=2。则2x+3y=14。
某Web网站向CA申请了数字证书。用户登录过程中可通过验证()确认该数字证书的有效性,以(作答此空)。
本题解析:
用户可以使用CA的公钥对证书上的签名进行验证,一旦验证通过,该证书就被认为是有效的,从而该验证网站的真伪。
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