Differentiate between the terms: node, a cluster, and data center in Cassandra?

These all are the basic component of Cassandra. A node is a work as an individual machinery, a cluster is an accumulation of a great number of nodes and these nodes have a similar kind of collected data. While at the time of serving the customers where they are located at different locations Data centers are useful. In combination, we can say that it helps to group various nodes of a cluster into various data centers.