Perform a research on Cloud Computing and Big Data $($please do not forget to cite all of your sources at the end of your document$).$ In your research, at least, cover these points at: $-$ What are the main characteristics of a Cloud System? $-$ Explain the main characteristics of the following Cloud vendors: $$ Amazon Elastic Compute Cloud $($Amazon EC$2)$ Google Cloud Platform $($GCP$)$ Microsoft Windows Azure $($Entra$)-$ What are VMware and Microsoft$$s Hyper$-$V meant to be$?-$ What are the main characteristics $($features$)$ of Big Data?