Keyspace and table properties
The CQL WITH clause specifies keyspace and table properties in these CQL commands:
CQL keyspace properties
The name of the replication strategy: SimpleStrategy or NetworkTopologyStrategy. You set the replication factor independently for each data-center.
The replication_factor property is used only when specifying the SimpleStrategy, as shown in CREATE KEYSPACE examples. The replication factor value is the total number of replicas across the cluster.
You can also configure the durable writes property when creating or altering a keyspace.