Multiple Choice
Which of the following is a digital transmission system that defines circuits that operate at different rates, all of which are multiples of the basic 64 Kbps used to transport a single voice call?
A) Digital subscriber line
B) Asynchronous transfer mode
C) Synchronous optical network
D) T-carrier system
E) ISDN
Correct Answer:

Verified
Correct Answer:
Verified
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