Exam-style question
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Which statement correctly distinguishes bit rate from baud rate?.
- A.Bit rate counts signal changes, while baud rate counts bits
- B.Bit rate and baud rate must always have the same value
- C.Bit rate can be higher than baud rate when each signal change encodes more than one bit
- D.Baud rate can be higher than bit rate only when no protocol is used
Model answer
What a good answer should say
- Bit rate can be higher than baud rate when each signal change encodes more than one bit
Explanation
Why this works
If a single signal change represents more than one bit, several bits are transmitted for each baud. Consequently, the bit rate is higher than the baud rate.
Common mistake
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