SQS or Simple Queue Service from Amazon, offers you a fully managed pay-per-use, message queuing service that helps you in decoupling and scaling microservices, serverless applications, and distributed systems. Developers use these services like SQS to avoid dealing with the task of creating and maintaining message queues, as it helps in building application from decoupled components.
If you are aspiring for AWS certification, then I would recommend you to take up Intellipaat’s AWS training course. And also, watch our YouTube video on AWS tutorial for beginners.