What happens to unicast subscriptions if there are no active receivers?

Unicast subscriptions are designed to create a direct connection between the sender and the receiver. If there are no active receivers, the data continues to be transmitted at regular intervals. This is because unicast streams operate independently of the presence of receivers. The source continues to send out the audio data, and this transmission remains constant regardless of whether any devices are actively receiving it. This behavior is a fundamental attribute of unicast communication, where the sender maintains its data stream, anticipating potential connectivity with receivers.

In contrast, the other options describe different aspects of network behavior that do not apply in this scenario. For example, adjusting latency or reverting to multicast involves changes in how data is managed and transmitted based on network conditions or infrastructure, which is not relevant when discussing unicast streams with no active receivers. Therefore, unicast streams simply persist in their ongoing transmission, highlighting the defined nature of how unicast functions in a network environment.