在CPU内外常需设置多级高速缓存(Cache),其主要目的是( )。
在CPU内外的高速缓存是用来解决CPU与内存之间速度、容量不匹配的问题,与外存无关,可以提高CPU访问主存数据或指令的效率,所以B选项正确,D选项错误。
Cache不属于主存,与主存容量无关,所以A选项错误。
Cache容量相对于其他存储层次,量级较小,不能扩大存储系统的存量,所以C选项错误。
( )is the process of transforming information so it is unintelligible to anyone but the intended recipient.
As each application module is completed,it undergoes( )to ensure that it operates correctly and reliably.
( )algorithm specifies the way to arrange data in a particular order.
After analyzing the source code,( )generates machine instructions that will carry out the meaning of the program at a later time.
( )can help organizations to better understand the information contained within the data and will also help identify the data that is most important to the business and future business decisions.
浏览器开启无痕浏览模式后,( )依然会被保存下来。
下列协议中,不属于TCP/IP协议簇的是( )。
下列传输介质中,带宽最宽、抗干扰能力最强的是( )。
数控编程常需要用参数来描述需要加工的零件的图形。在平面坐标系内,确定一个点需要2个独立的参数,确定一个正方形需要( )个独立的参数。
某书的页码为1,2,3,...,共用数字900个(一个多位数页码包含多个数字),据此可以推断,该书最大的页码为( )。