Here are some more, and, I hope, more meaningful questions:
What is the nominal voltage for a POTS line?
What is the voltage and frequency of ringing current?
Why do we use a twisted pair?
What is an exclusion circuit, and how is it wired?
What effect, if any, does a reversed pair cause?
What symptom(s) are heard when testing an unbalanced pair?
You are testing a cable pair for a POTS line. At one point you clip on the pair and hear a hum. Further down the line, you clip on and hear static. What fault condition are you likely to find?
What is a counter-cell?
What is a CEV?
When do you have the right-of-way when driving a Verizon vehicle?
