How does it work sitting for the CPA in a different state?

Okay so I am a sophomore (rising junior) accounting student and I live in Kentucky and go to Eastern Kentucky University. My goal is to get my MBA with an accounting focus and get my CPA certification as well.  If all goes as planned, I will graduate with my MBA and CPA at right after I turn 22. My hope is to move to california (Los Angeles) after I graduate. How does it work when you sit for the CPA exam in a different state? Like do I take it in Kentucky and its now viable in California (providing that I work a year in Cali to actually recieve the license). Can someone please explain in depth the process of sitting for the cpa for a different state. Thank you all.