What are bit rate and baud rate? Answer: Bit rate (or data rate): The number of bits being transmitted per unit of time. Baud rate (or symbol rate): The number of symbols being transmitted per unit...

What are bit rate and baud rate?

Answer:

Bit rate (or data rate): The number of bits being transmitted per unit of time.

Baud rate (or symbol rate): The number of symbols being transmitted per unit of time.

In digital communications, what kinds of signals are often used, and why?

Answer:

In digital communications, the periodic analog signals and the aperiodic digital signals are commonly used because the former demand less bandwidth and the latter represent digital data.