1. ADSL increases existing twisted-pair access capacity by __________.

2. A modem translates ______________.

3. The 1948 theorem which is the basis for understanding the relationship of channel capacity, bandwidth, signal-to-noise ratio is known as ______________.

4. What appears to be the practical limit for analog modems over the standard telephone network?

5. Digital subscriber line (DSL) refers to ________________.

6. T1/E1 and HDSL are essentially equivalent technologies.

7. ADSL cannot handle Internet or LAN access.

8. What is the source of limitation on the bandwidth of the public switched network?

9. The practical upper limit of length of ADSL is ______________.

10. T1 and DS–1 refer to the same multiplexing system. Which one is generally used to refer to the raw data rate?