Final answer:
For a digital signal with a data rate of 1000bps using Differential Manchester encoding, the required baud rate is 2000 baud, as each bit is represented by two level transitions.
Step-by-step explanation:
The baud rate is a measure of the number of signal changes or symbols per second in a digitally encoded signal. When it comes to Differential Manchester encoding, each bit is represented by two level transitions. This means that, in order to achieve a data rate of 1000bps with Differential Manchester encoding, the baud rate must be double the data rate, since two signal changes are required to represent each bit.
Therefore, for a data rate of 1000bps, the baud rate would be 2000 baud. Differential Manchester encoding is primarily used in situations where clock recovery is required and is commonly known for its use in the IEEE 802.5 token ring networking standard.