搜题请搜索小程序“爱下问搜题”
问题 单项选择题

当前微机局域网络上一般采用（）网络操作系统。

A．UNIX

B．OS/2

C．SQL

D．WINDOWS

答案

参考答案：D

解析：

当前微机局域网络上一般采用WINDOWS网络操作系统。

判断题

“科教兴国”战略是以胡 * * 为 * * 的党中央提出的。
查看答案
单项选择题

Both bus and tree topologies are characterized by the use of multipoint (16) ．For the bus，all stations attach，through appropriate hardware (17) known as a tap，directly to a linear transmission medium，or bus．Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the (18) ．A transmission from any station propagates the length of the medium in both directions and can be received by all other (19) ．At each end of the bus is a (20) ，which absorbs any signal，removing it from the bus．

A．processing

B．switching

C．routing

D．interfacing
查看答案