Final answer:
Amazon SQS is a proprietary, fully managed message queue service, suitable for simple, scalable queuing needs, while Amazon MQ is a managed broker service using open-source protocols, ideal for complex messaging and existing systems.
Step-by-step explanation:
The question at hand is how Amazon SQS differs from Amazon MQ. To clarify, Amazon SQS (Simple Queue Service) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. On the other hand, Amazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up and operate message brokers in the cloud.
One of the main differences between Amazon SQS and Amazon MQ is that SQS is a proprietary service provided by AWS that uses a poll-based system whereas Amazon MQ is based on popular open-source message brokers and supports industry-standard protocols such as MQTT, AMQP, STOMP, and more. SQS is well-suited for high-volume, asynchronous workloads whereas MQ is ideal when you need features like message filtering, topic and queue support, and compatibility with existing applications that use traditional message brokers.
Another key difference is in durability and availability. Amazon SQS automatically stores messages across multiple Availability Zones, providing high availability and fault tolerance. Amazon MQ is designed to be used within a single Availability Zone by default, although it can be configured for high availability across multiple zones.
In summary, Amazon SQS provides a simple, scalable, fully managed queuing service for straightforward queuing applications, while Amazon MQ provides more traditional broker functionalities that are required for complex messaging patterns and backwards compatibility with existing systems.