Fundamentals Of Networking And Data Communications International 7th Edition By Curt White – Test Bank

Chapter 11: Voice and Data Delivery Networks

TRUE/FALSE

1. The Internet can transfer conventional data and voice data.

ANS: T PTS: 1 REF: 308

2. It wasn’t until the 1950s that POTS began carrying computer data signals as well as voice signals.

ANS: F PTS: 1 REF: 308

3. Only two wires are required to complete a telephone circuit.

ANS: T PTS: 1 REF: 308

4. A trunk has a unique telephone number associated with it.

ANS: F PTS: 1 REF: 309

5. Subscriber loops usually transmit digital signals, which require amplifiers every few kilometers.

ANS: F PTS: 1 REF: 309

6. Prior to 1984, AT&T (American Telephone and Telegraph) owned all the long-distance telephone lines in the United States.

ANS: T PTS: 1 REF: 310

7. Telephone systems were originally designed to transmit the human voice.

ANS: T PTS: 1 REF: 312

8. The more information you wish to send over a medium, the lower the frequency of the signal you need to represent that information.

ANS: F PTS: 1 REF: 312-313

9. When they were originally introduced many years ago, dial-up modems were capable of data transfer speeds of merely 15 to 30 bits per second.

ANS: F PTS: 1 REF: 313

10. A V.92 modem can place a data connection on hold should someone call the user’s telephone number.

ANS: T PTS: 1 REF: 314

11. An asymmetric service is useful for an Internet connection in which the bulk of the traffic comes down from the Internet to the workstation.

ANS: T PTS: 1 REF: 315

12. Most residential DSL services are symmetric.

ANS: F PTS: 1 REF: 315

13. There is only one DSL format in use today.

ANS: F PTS: 1 REF: 316-317

14. A cable modem is a physical device that separates the computer data from the cable television video signal.

ANS: T PTS: 1 REF: 317

15. Cable modem connections are typically symmetric.

ANS: F PTS: 1 REF: 317