We'll now turn our focus to other native services. We'll begin with Amazon SNS and then move on to Amazon SQS.
Amazon Simple Notification Services (SNS) is the cloud-based notification service that's provided by AWS that enables the delivery of messages to the recipients or to the devices. SNS uses the publisher/subscriber model for the delivery of messages. Recipients can either subscribe to one or more "topics" within SNS or can be subscribed by the owner of a particular topic. AWS SNS supports message deliveries over multiple transport protocols.
AWS SNS is very easy to set up and can scale very well depending on the number of messages. Using SNS, you can send messages to a large number of subscribers, especially mobile devices. For example, let's say you have set up the monitoring for one of your RDS instances in AWS, and once the CPU goes beyond 80%, you want to send an alert in the form of an email. You can set up an SNS service to achieve this notification...