Question 1: What is the basic difference between an analog switched service and an analog leased service?
Question 2: Explain the analog hierarchy in which groups of signals are successfully multiplexed onto the higher bandwidth lines?
Question 3: What are the three kinds of digital services available to the telephone customers?
Question 4: What is the function of a DSU in switched/56 service?
Question 5: Explain the DS hierarchy.
Question 6: How are T lines associated to the DS service?
Question 7: How can T lines are employed for the analog transmission?
Question 8: How does ADSL divide the bandwidth of the twisted-pair cable?
Question 9: How does ADSL modulate a signal?
Question 10: Name the two manners in which digital services are superior to the analog services?