Cloud is an enormous, linked network of powerful computers that provides services for companies and individuals. The cloud Interconnected computers, mechanical as well as digital machinery, animals, objects, and people are all part of Internet of Things (IoT), the system that allows data to be exchanged between the devices without any human intervention or human-to- computer contact. As the amount of data generated by IoT devices has increased, the technology has changed. As a result, IoT Cloud Service generates extreme communication between low-cost sensors in the IoT that results in even more connectivity. Humans will soon be joined by billions of other linked gadgets and machines. This data is generated via the Internet of Things (IoT) while the cloud computing facilitates its movement. In this book, we focus on cloud service providers who offer a pay-as- you-go model in which customers only pay for resources they consume. IoT startups can also benefit from cloud hosting as a service because it provides economies of scale that reduce overall costs.