21.T-3 lines are generally available for home use.
22.The ISO consists of a seven-layer model for network connections.
23.An open protocol is open to the public and allowed to be used without cost.
24.A peer-to-peer protocol allows each computer to act as its own controller.
25.Ethernet is a proprietary network for peer-to-peer communications.
26.If two peer computers try to send data at the same time, a data transmission crash occurs.
27.To route packets through the Internet, an IP address is used.
28.Ethernet networks use a star topology.
29.The Internet is a collection of networks that can be joined together.
30.An intranet limits accessibility to computer resources to a select group of persons