In Cloud Computing, Resource pooling is a term used in cloud computing environments to describe a condition in which providers provide provisional and scalable services to multiple clients or customers. These services can be customized to suit each client's requirements without doing changes being apparent to the client or end-user.
If you are looking for online courses to learn Cloud Computing, check out this Cloud Computing Training courses by Intellipaat.
You can watch this video on Cloud Computing basics to understand more: