1. In order to provide high-bit digital services to end users via DSL technology, the cables that provided POTS must be replaced.

2. When compared to SNEXT, SFEXT is the best noise environment in terms of providing the least amount of interference.

3. In the loop plant, FEXT is generally far more damaging than NEXT because, unlike NEXT, FEXT directly disturbs the received signal.

4. NEXT and FEXT coupling are both greater at higher frequencies than at lower frequencies.

5. With ADSL, FDM systems provide a greater immunity to NEXT than echo-canceled (EC) systems.

6. The effect of crosstalk that one DSL system has upon another defines their ________.

7. Assuming that all of the signals in a cable have the same transmit signal power levels, SNEXT is the worst-case disturber to all but which of the following?

8. Which of the following are not accurately paired according to spectrum use fortransmission of upstream and downstream data?

9. The DSLs that target symmetric transmission applications include all but which of the following?

10. Which of the following is not true about the CSA design rules that defined the distribution of twisted wire pairs from DLC systems?