I'm trying to fully understand the differences between Apache and Nginx. I've come across the concepts of thread-per-connection and thread-per-request. Then, I've also learned about Apache's MPMs. From my understanding, using mpm_prefork, Apache will work on a process-per-connection mode, and using mpm_worker on a thread-per-connection mode.
But there is no way of having Apache being thread-per-request. Is this correct?