| A | B |
|---|
| circuit switching | opens a channel for the length of the call |
| packet-switching | transmits small portions of messages over the Internet and reassembles them at the final destination |
| Point-to-Point Protocol (PPP) | standard that sends TCP/IP packets from a client computer to a server that puts them on the Internet |
| WHOIS database | domain name lookup |
| Usenet | hosts thousands of newsgroups |
| hierarchy | newsgroup categories |
| alt newsgroup | newsgroup that carries discussions about specific topics |
| channel | an individual IRC chat group |
| netiquette | guidelines for good behavior on the Internet |
| Internet 2 (I2) | project that tests new network technologies |
