Question

Which telecommunications service allows Internet and telephone services to work over the same phone line?
A. digital cable
B. DSL
C. mobile network
D. webmail
E. data card

Answer 1

the telecommunications service allows Internet and telephone services to work over the same phone line?
A. digital cable
B. DSL √√√√
C. mobile network
D. webmail
E. data card

Answer 2

"The DSL is a sophisticated modulation scheme used pack data onto copper wires and is sometimes referred to as the last mile technology as it is used only for links from a phone switching station to a house or office.

It is always called an always on connection because it uss existing2 wire copper telephone line connected to the premisesand will not tie up your phone as a dial up connection does. It is further broken doen to ADSL and SDSL.  

"