The Internet of Things popularly known as IoT is the network that consists of devices, vehicles, buildings or any other connected electronic devices. This interconnection facilitates collection and exchange data. The 4 common components of an IoT system are Sensor, Application, Network and Backend (Data Center). IoT is a connection of identifiable embedded devices with the existing Internet infrastructure. In simple words, we can say that IoT is and era of "smart" connected products that communicate and transfer a large amount of data and upload it to cloud. IoT testing is a type of testing to check IoT devices. Today there is increasing need to deliver better and faster services. There is a huge demand to access., create, use and share data from any device. The trust is to provide greater insight and control, over various interconnected. IoT devices