I have had two careers: in Tech, and in Education. Recently, I decided to steer myself back into Tech. I’d never stopped being interested in computers, systems, open source projects, and programming. So after a decade teaching, I started thinking seriously about working in tech again. Could I regain my youthful excitment? Did I still know anything relevant? As a refresher, I signed up for a credential exam (on sale!) with The Linux Foundation.