Which of the following decides how the digital 1's and 0's are represented in terms of voltage and frequencies?
A)Signal frequency spectrum
B)Bandwidth
C)Switches and routers
D)Modulation and coding

Question

Quizplus · Accepted Answer

Modulation and coding techniques are used to convert the digital 1's and 0's into analog signals that can be transmitted over a communication channel. Modulation methods determine how the digital information is represented by different carrier signals, while coding techniques ensure that the information is transmitted reliably and efficiently. The voltage and frequencies used to represent the digital information depend on the modulation and coding scheme employed. Therefore, option D is the correct choice. Options A, B, and C are not relevant to this context.

Which of the Following Decides How the Digital 1's and 0's