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Question

Digital signals used in ISDN have _______.

A
Discrete values
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B
Whole number values
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C
Any value
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D
Fractional value
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Solution

The correct option is A Discrete values

Digital signals used in ISDN have discrete values.

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

A digital signal is a signal that is being used to represent data as a sequence of discrete values; at any given time it can only take on one of a finite number of values.


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