When you complete your degree and teacher training, the state will finally recognize you as a qualified teacher. This distinction is often interchangeably referred to as a certificate, certification, license, or credential.
In education we are bombarded with state tests, each referred to by a different acronym. Students in California take the CAASPP, the CAST, and the CHSPE to name a few. Then there are college admissions exams, the ACT and SAT.