What is the relationship between transmitted symbol rate and bandwidth?

In digital communications, the symbol rate (often called baud rate) is the number of times the signal state changes per second. According to the fundamentals of signal processing, transmitting data faster with a higher symbol rate inherently takes up more frequency spectrum. Therefore, higher symbol rates always require a wider bandwidth to effectively transmit the information without distortion or loss of data. Options suggesting no relationship or an inverse relationship are incorrect because of this direct physical constraint. The suggestion that bandwidth is exactly half the symbol rate is a misapplication of the Nyquist limit.