[填空题]实现与Internet的连接通常有两种情况：一种通过电话线连接，一种是通过_____ 连接Internet

[填空题]实现与Internet的连接通常有两种情况：一种通过电话线连接，一种是通过_____连接Internet。

[填空题]接入Internet通常采用两种方法：一是通过【 】直接与ISP连接。二是连接已接入 Internet的局域网。

[简答题]【问题1】
通常VLAN有静态和动态两种实现方式，这两种方式分别是如何实现的各有什么特点
Switch1采用的是哪种实现方式

[判断题]辐射散热器与管道的连接方式通常有两种，块状辐射板之间采用串联连接，带状辐射板之间采用并联连接。( )

[单项选择]为了实现电话拨号方式连接Internet，除了要具备一条电话线和一台486以上的计算机外，另一个关键的硬件设备是（）。
A. 网卡
B. MODEM
C. 服务器
D. 路由器

[填空题]接入Internet通常采用两种方法：①通过 【13】 直接与ISP连接；②连接已接入Internet的局域网。

[填空题]接人Internet通常采用两种方法：①通过 【13】 直接与ISP连接，②连接已接入Internet的局域网。

[填空题]接入Internet通常采用两种方法：一是通过　【12】　直接与ISP连接。二是连接已接入 Internet的局域网。

[单项选择]通常在运输市场上，供给弹性呈现为( )和缺乏弹性两种情况。
A. 单位弹性
B. 富有弹性
C. 完全有弹性
D. 完全无弹性

[填空题]The Internet is a global system of inter-connected computer networks to serve billions of users worldwide. It is a network of networks that (36) of millions of private, public, business, (37) and government networks of local to global (38) that are linked by a broad amount of electronic and optical (光纤的) networking (39) . The Internet carries a vast amount of information (40) and services.
Most traditional communications (41) , such as telephone and television services, are reshaped or (42) using the technologies of the Internet, giving (43) to services such as Voice over Internet. Newspaper publishing has been reshaped into websites and blogs. (44) .
The origins of the Internet reach back to the 1960s when the United States funded research projects of its military agencies to build robust and distributed computer networks. (45) . It led to the commercializat