

MCQOPTIONS
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1. |
Consider the following:1. Pulse-position modulation.2. Pulse-code modulation.3. Pulse-width modulation.Which of the above communications are not digital? |
A. | 1 and 2 only |
B. | 2 and 3 only |
C. | 1 and 3 only |
D. | 1, 2 and 3 |
Answer» D. 1, 2 and 3 | |