AWS IoT Core is a managed cloud service that enables connected devices to securely and seamlessly interact with cloud applications and other devices. It can support billions of devices and trillions of Messages (MQTT Protocol is used to send and receive messages) and can process and route such messages to AWS endpoints and other connected devices. With AWS IoT Core, we can keep track and communicate with all our devices, all the times, even when the devices have an intermittent connection among themselves.