In Figure 6 the signals from modem X to modem Y is

The correct answer is either "analogue" or "digital," depending on the type of signal being transmitted. Analog signals are continuous, meaning they can take on any value within a range of values, whereas digital signals are discrete, meaning they can only take on specific, predetermined values. Without more information or context about the specific signals being transmitted in Figure 6, it is impossible to determine whether the signals are analogue or digital. However, it is safe to assume that they are one of these two types, as these are the most common types of signals used for communication between modems. In summary, the answer to the question "In Figure 6 the signals from modem X to modem Y is?" is either "analogue" or "digital," depending on the type of signal being transmitted.