# Tag: Message Queues

Posts tagged Message Queues.

- [What is RabbitMQ?](https://scaleengineer.com/blog/what-is-rabbitmq)
  - RabbitMQ is an open-source message broker for reliable, scalable communication between applications.
- [What is a Dead Letter Queue?](https://scaleengineer.com/blog/what-is-a-dead-letter-queue-handling-messages-that-fail)
  - What is a Dead Letter Queue? Handling messages that fail explained with practical patterns to build resilient, reliable messaging systems.
- [What is Publish-Subscribe Pattern? ](https://scaleengineer.com/blog/what-is-publish-subscribe-pattern)
  - What is publish-subscribe pattern? Learn how pub/sub decouples components, with real-world examples and benefits for scalable systems.
- [API Gateway vs Load Balancer](https://scaleengineer.com/blog/api-gateway-vs-load-balancer)
  - Discover the differences between API gateway vs load balancer and find out which is best for your system's performance and security needs.