Is it possible to send messages to multiple subscribers through a single exchange in RabbitMQ?

Yes, in RabbitMQ, messages can be sent to multiple subscribers through a single exchange. This is achieved using exchange types that support message routing to multiple queues:

• fanout — sends each message to all queues bound to the exchange.
• topic — routes messages based on routing key patterns, allowing delivery to multiple subscribers if their keys match.
• direct — delivers messages to queues with an exactly matching routing key.

Therefore, if you want to send a message to multiple subscribers, you typically use a fanout or topic exchange bound to several queues with subscribers.