In this lesson, we will cover the Cassandra shell cqlsh, a command-line interface, provided by Apache Cassandra, which comes installed, located in the bin/ directory. cqlsh uses Python native protocol driver to connect with a Cassandra node and execute CQL commands.

To start the CQL shell, type cqlsh once the cluster is up and running. To connect to a specific host, specify the IP address and port after the cqlsh keyword. In the absence of a port, the default port 9042 is used for the connection. 

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