The Internet is based on which three key technologies?

Client$/$server computing, packet switching, and HTTP

TCP$/$IP$,$ HTML$,$ and HTTP

Client$/$server computing, packet switching, and the development of communications standards for linking networks and computers

TCP$/$IP$,$ HTTP$,$ and packet switching

Email, instant messaging, and newsgroups

The physical view of a database:

shows how data are organized and structured on the storage media.

presents an entry screen to the user.

shows the relationships between entities and attributes.

presents data as they would be perceived by end users.

allows the creation of supplementary reports.