I think you're confusing http(s) and tls. Http(1) is a request/response protocol. Tls is the stream encryption and key negotiation protocol most heavily used.

I think you're confusing http(s) and tls. Http(1) is a request/response protocol. Tls is the stream encryption and key negotiation protocol most heavily used. Also, tls1.3 adds 0rtt for subsequent cqlls to the same server.