Tables provide advantages over regular ranges but you cannot convert a table back to a regular range of data

Rhapsody's service, provided by RealNetworks, is an example of a(n):

A) instant messenger service B) online music service C) junk e-mail filtering service D) e-mail service provider

Which of the following are benefits of using VPNs? (Choose all that apply)

a. Eliminates the need for expensive dedicated WAN links b. Uses advanced encryption and authentication protocols c. Supports DSL and cable d. Cost savings using ISDN and PSTN connections e. Easy to add new users f. Cost savings using PVCs