How to enable a Cassandra node to participate in multiple cluster

Hello everyone, I want to use Cassandra cluster for some specific purpose across data centers. What I want to figure out is how can I enable a single Cassandra node to participate in multiple clusters at the same time? I googled it, however I could not find any use case of Cassandra as I mentioned

Check out if Cassandra ready

check if cassandra is running (with Java)? Thanks. Salih Kardan