In Ethernet when Manchester encoding is used, the bit rate is:
2007
In Ethernet when Manchester encoding is used, the bit rate is:
- A.
Half the baud rate.
- B.
Twice the baud rate.
- C.
Same as the baud rate.
- D.
None of the above
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Correct answer: A
Answer: The bit rate is half the baud rate.
Explanation: In Manchester encoding each data bit is encoded by a transition in the middle of the bit period. This means each bit is represented by two signal-level intervals, so the symbol (baud) rate is twice the bit rate.
Because there are two signal intervals per bit, baud rate = 2 × bit rate.
Rearranging gives bit rate = baud rate / 2, i.e., the bit rate is half the baud rate.
Example: 10 Mbit/s Ethernet uses Manchester encoding, which implies a 20 Mbaud signal.
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