Design Microservices Architecture with Patterns and Principles - RabbitMQ Exchange Types - Direct, Fanout, Topic, and He

The video tutorial explains the four types of exchanges in RabbitMQ: direct, topic, fan out, and header exchanges. Each exchange type has a specific routing algorithm that determines how messages are routed to queues. Direct exchange routes messages to a single queue using a routing key. Topic exchange routes messages based on their subject, suitable for publish-subscribe patterns. Fan out exchange broadcasts messages to multiple queues, ideal for global announcements. Header exchange uses message headers for routing, matching attributes between headers and queues.

In what scenarios is a fan out exchange typically used?

What distinguishes a header exchange from other exchange types in RabbitMQ?