…………………is a core protocol used over the SONET/SDH backbone of the public switched telephone network (PSTN) and Integrated Services Digital Network (ISDN), but its use is declining in favour of All IP.
A)Asynchronous Transfer Mode
B)digital split
C)ICT
D)IPR

Question

Quizplus · Accepted Answer

Asynchronous Transfer Mode (ATM) is the correct answer because it is a core protocol used over the SONET/SDH backbone of the PSTN and ISDN. Its use is declining in favor of all IP networks, which offer more efficient and flexible data handling capabilities.

…………………Is a Core Protocol Used Over the SONET/SDH Backbone of the Public