问题
单项选择题
In enterprises, the gateway is the computer that (67) the traffic from a workstation to the outside network that is serving the Web pages. In homes, the gateway is the (68) that connects the user to the internet.
A．TCP
B．ISP
C．FTP
D．IIS
答案
参考答案：B
解析：ISP为Internet服务提供商。IIS为互联网信息服务。FTP为文件传输协议。答案为B。