What will significantly degrade DSL performance, regardless of DSL rate or line length?

The telephone company has placed a bridge-tap (half-tap) on all the pairs in a cable in preparation to reroute the cable. DSL customers are served by this cable. Three of the following five statements are correct. Which three of the following statements describes the possible effect of placing bride-taps on a DSL line? (multiple answer)

What effect do load coils in a telephone line have on DSL service?

A DSL modem will not train up. It is on a “shared line” (DSL and POTS), and the telephone on the shared line is working normally. Nine of the ten conditions are possible causes of the symptom, and one is not. What is NOT a possible cause of the problem?

What best describes RADSL?

The following are wire sizes used in telephone company cables. Which will allow the greatest “reach” (distance) in DSL service?

What is the effect of changing DMT interleaved delay from 16 milliseconds
to 2 milliseconds?

A DMT DSL modem is working on a “shared line” with standard telephone service (POTS). When the subscriber picks up the telephone handset, the DSL modem untrains, then retrains at a lower DSL line rate. When the telephone is not off-hook, the DSL modem will train at the subscribed rate (normal operation).Which of the following is the probable cause of this symptom?