The Digium-Certified Asterisk Professional (dCAP) certification is a verification of your knowledge of Asterisk. The certification covers a specific released, stable version of Asterisk. The program is offered at the end of the Asterisk Advanced training course.
The Digium Certified Asterisk Administrator (dCAA) program is intended to validate basic competency with Asterisk. dCAA certification lasts 2 years and is awarded after earning a passing score on the dCAA examination.