question from the book data communications and computer metworks (4th edition)

1 You are working for a company that has a network application for accessing a dial-up database of corporate profiles. From your computer workstation, a request for a profile travels over the corporate local area network to a modem. The modem, using a conventional telephone line, dials in to the database service. The database service is essentially a modem and a mainframe computer. Create a table (or draw a figure) that shows every time data or signals are converted to a differ- ent form in this process. For each entry in the table, show where the conversion is taking place, the form of the incoming information, and the form of the outgoing information