TCP/IP (1) layer protocols provide services to the application (2)running on a computer. The application layer does not define the application itself, but rather it defines(3)that applications need - like the ability to transfer a file in the case of HTTP. In short, the application layer provides an (4)between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols,with HTTP being only one of those. The TCP/IP (5)layer consists of two main protocol options - the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). 空白(3)处应选择()
A. services
B. processes
C. applications
D. address
评价计算机系统性能时,MIPS是衡量()的一种单位。
A. 时钟频率
B. 运算速度
C. 系统可靠性
D. 系统失效率
页式存储系统的逻辑地址由页号和页内地址两部分组成,地址变换过程如下图所示。假定页面的大小为8K,图中所示的十进制逻辑地址9612经过地址变换后,形成的物理地址a应为十进制()。
A. 42380
B. 25996
C. 9612
D. 8192
共用题干题某文件管理系统在磁盘上建立了位示图(bitmap),记录磁盘的使用情况。若系统的字长为32位,磁盘上的物理块依次编号为:0、1、2、…,那么4096号物理块的使用情况在位示图中的第__(1)__个字中描述;若磁盘的容量为200GB,物理块的大小为1MB,那么位示图的大小为__(2)__个字。 空白(2)处应选择()
A. 600
B. 1200
C. 3200
D. 6400