Answer the following "Test Your Understanding" questions using APA style and form:
a. Below what speed are there different leased line standards in different parts of the world?
b. What is the exact speed of a T1 line?
c. What are the speeds of comparable leased lines in Europe?
d. Why are fractional T1 and E1 speeds desirable?
e. List common fractional T1 speeds.
f. What are the most widely used leased lines?
g. What leased line standards are used above 50 Mbps?
Be sure to support your answers with concepts from the reading.